Version 2.15.0-21.0.dev Merge commit '5657acfc76275d5136eacf4c2a61d3f67583fd81' into 'dev'

diff --git a/DEPS b/DEPS
index ee3a819..c7ffc18 100644
--- a/DEPS
+++ b/DEPS

@@ -103,7 +103,7 @@
   #     and land the review.
   #
   # For more details, see https://github.com/dart-lang/sdk/issues/30164
-  "dart_style_rev": "06bfd19593ed84dd288f67e02c6a753e6516288a",
+  "dart_style_rev": "14d9b6fd58cc4744676c12be3cc5eee2a779db82",
 
   "dartdoc_rev" : "5f39ec674d81f5c199151d823fa4ecd01fc59eb2",
   "devtools_rev" : "64cffbed6366329ad05e44d48fa2298367643bb6",

diff --git a/pkg/front_end/testcases/constructor_tearoffs/call_instantiation.dart.textual_outline_modelled.expect b/pkg/front_end/testcases/constructor_tearoffs/call_instantiation.dart.textual_outline_modelled.expect
index fa69e2d..3d25c7a 100644
--- a/pkg/front_end/testcases/constructor_tearoffs/call_instantiation.dart.textual_outline_modelled.expect
+++ b/pkg/front_end/testcases/constructor_tearoffs/call_instantiation.dart.textual_outline_modelled.expect

@@ -1,4 +1,6 @@
 T func<T>(T value) => value;
 int Function(int) f = funcValue.call;
+int Function(int) g = funcValue.call<int>;
 main() {}
+test(Function f) {}
 var funcValue = func;

diff --git a/pkg/front_end/testcases/constructor_tearoffs/const_tear_off.dart.textual_outline.expect b/pkg/front_end/testcases/constructor_tearoffs/const_tear_off.dart.textual_outline.expect
index a4b6c13..7fa3351 100644
--- a/pkg/front_end/testcases/constructor_tearoffs/const_tear_off.dart.textual_outline.expect
+++ b/pkg/front_end/testcases/constructor_tearoffs/const_tear_off.dart.textual_outline.expect

@@ -3,6 +3,7 @@
   factory A.fact() => new A();
   factory A.redirect() = A;
 }
+
 typedef B<T> = A<T>;
 typedef C<T> = A<int>;
 const a = A.new;

diff --git a/pkg/front_end/testcases/constructor_tearoffs/const_tear_off.dart.textual_outline_modelled.expect b/pkg/front_end/testcases/constructor_tearoffs/const_tear_off.dart.textual_outline_modelled.expect
new file mode 100644
index 0000000..34b33d7
--- /dev/null
+++ b/pkg/front_end/testcases/constructor_tearoffs/const_tear_off.dart.textual_outline_modelled.expect

@@ -0,0 +1,27 @@
+class A<T> {
+  A();
+  factory A.fact() => new A();
+  factory A.redirect() = A;
+}
+
+const a = A.new;
+const b = A<int>.new;
+const c = A.fact;
+const d = A<int>.fact;
+const e = A.redirect;
+const f = A<int>.redirect;
+const g = B.new;
+const h = B<int>.new;
+const i = B.fact;
+const j = B<int>.fact;
+const k = B.redirect;
+const l = B<int>.redirect;
+const m = C.new;
+const n = C<int>.new;
+const o = C.fact;
+const p = C<int>.fact;
+const q = C.redirect;
+const r = C<int>.redirect;
+main() {}
+typedef B<T> = A<T>;
+typedef C<T> = A<int>;

diff --git a/pkg/front_end/testcases/constructor_tearoffs/dynamic_explicit_instantiation.dart.textual_outline_modelled.expect b/pkg/front_end/testcases/constructor_tearoffs/dynamic_explicit_instantiation.dart.textual_outline_modelled.expect
new file mode 100644
index 0000000..1225dc9
--- /dev/null
+++ b/pkg/front_end/testcases/constructor_tearoffs/dynamic_explicit_instantiation.dart.textual_outline_modelled.expect

@@ -0,0 +1,5 @@
+main() {}
+test1(dynamic x) => x.foo<int>;
+test2(Never x) => x.foo<int>;
+test3(dynamic x) => x.toString<int>;
+test4(Never x) => x.toString<int>;

diff --git a/pkg/front_end/testcases/constructor_tearoffs/explicit_instantiation_errors.dart.textual_outline_modelled.expect b/pkg/front_end/testcases/constructor_tearoffs/explicit_instantiation_errors.dart.textual_outline_modelled.expect
new file mode 100644
index 0000000..0e3fd34
--- /dev/null
+++ b/pkg/front_end/testcases/constructor_tearoffs/explicit_instantiation_errors.dart.textual_outline_modelled.expect

@@ -0,0 +1,13 @@
+X boundedMethod<X extends num>(X x) => x;
+X id<X>(X x) => x;
+main() {}
+test() {}
+var a = id;
+var b = a<int>;
+var c = id<int>;
+var d = id<int, String>;
+var e = method<int>;
+var f = 0<int>;
+var g = main<int>;
+var h = boundedMethod<String>;
+void method<X, Y>() {}

diff --git a/pkg/front_end/testcases/constructor_tearoffs/explicit_new_as_unnamed.dart.textual_outline.expect b/pkg/front_end/testcases/constructor_tearoffs/explicit_new_as_unnamed.dart.textual_outline.expect
index d6ac347..1c70682 100644
--- a/pkg/front_end/testcases/constructor_tearoffs/explicit_new_as_unnamed.dart.textual_outline.expect
+++ b/pkg/front_end/testcases/constructor_tearoffs/explicit_new_as_unnamed.dart.textual_outline.expect

@@ -1,35 +1,43 @@
 class A {
   A.new();
 }
+
 class B {
   B();
 }
+
 class C {
   C();
   C.new();
 }
+
 class D {
   D.new();
   D();
 }
+
 class E1 {
   E1._();
   E1();
   factory E1.new() => E1._();
 }
+
 class E2 {
   E2._();
   factory E2.new() => E2._();
   E2();
 }
+
 class E3 {
   E3._();
   E3();
   factory E3.new() = E3._;
 }
+
 class E4 {
   E4._();
   factory E4.new() = E4._;
   E4();
 }
+
 main() {}

diff --git a/pkg/front_end/testcases/constructor_tearoffs/explicit_new_as_unnamed.dart.textual_outline_modelled.expect b/pkg/front_end/testcases/constructor_tearoffs/explicit_new_as_unnamed.dart.textual_outline_modelled.expect
new file mode 100644
index 0000000..fd6763c
--- /dev/null
+++ b/pkg/front_end/testcases/constructor_tearoffs/explicit_new_as_unnamed.dart.textual_outline_modelled.expect

@@ -0,0 +1,43 @@
+class A {
+  A.new();
+}
+
+class B {
+  B();
+}
+
+class C {
+  C();
+  C.new();
+}
+
+class D {
+  D();
+  D.new();
+}
+
+class E1 {
+  E1();
+  E1._();
+  factory E1.new() => E1._();
+}
+
+class E2 {
+  E2();
+  E2._();
+  factory E2.new() => E2._();
+}
+
+class E3 {
+  E3();
+  E3._();
+  factory E3.new() = E3._;
+}
+
+class E4 {
+  E4();
+  E4._();
+  factory E4.new() = E4._;
+}
+
+main() {}

diff --git a/pkg/front_end/testcases/constructor_tearoffs/generic_tearoff_with_context.dart.textual_outline.expect b/pkg/front_end/testcases/constructor_tearoffs/generic_tearoff_with_context.dart.textual_outline.expect
index 89a5de5..556ac62 100644
--- a/pkg/front_end/testcases/constructor_tearoffs/generic_tearoff_with_context.dart.textual_outline.expect
+++ b/pkg/front_end/testcases/constructor_tearoffs/generic_tearoff_with_context.dart.textual_outline.expect

@@ -4,6 +4,7 @@
   A();
   factory A.bar1() => new A();
 }
+
 A<X> Function<X>(X) test1() => A.foo1;
 A<X> Function<X>(X) test2() => A.foo2;
 A<X> Function<X>(X) test3() => A.new;

diff --git a/pkg/front_end/testcases/constructor_tearoffs/generic_tearoff_with_context.dart.textual_outline_modelled.expect b/pkg/front_end/testcases/constructor_tearoffs/generic_tearoff_with_context.dart.textual_outline_modelled.expect
index 5110c82..fce295c 100644
--- a/pkg/front_end/testcases/constructor_tearoffs/generic_tearoff_with_context.dart.textual_outline_modelled.expect
+++ b/pkg/front_end/testcases/constructor_tearoffs/generic_tearoff_with_context.dart.textual_outline_modelled.expect

@@ -1,9 +1,22 @@
-A<X> Function<X>(X) bar1() => A.foo1;
-A<X> Function<X>(X) bar2() => A.foo2;
+A<X> Function<X>() test10() => A.bar1;
+A<X> Function<X>(X) test1() => A.foo1;
+A<X> Function<X>(X) test11() => A.bar1;
+A<X> Function<X>(X) test2() => A.foo2;
+A<X> Function<X>(X) test3() => A.new;
+A<X> Function<X>(X) test4() => A<int>.new;
+A<X> Function<X>(X) test5() => A<int, String>.new;
+A<X> Function<X>(X) test6() => A<int>.foo1;
+A<X> Function<X>(X) test7() => A<int, String>.foo1;
+A<X> Function<X>(X) test8() => A<int>.foo2;
+A<X> Function<X>(X) test9() => A<int, String>.foo2;
+A<int> Function() test12() => A<int>.bar1;
+A<int> Function() test13() => A.bar1;
 
 class A<X> {
+  A();
   A.foo1(X x) {}
   A.foo2(X x, int y) {}
+  factory A.bar1() => new A();
 }
 
 main() {}

diff --git a/pkg/front_end/testcases/constructor_tearoffs/generic_tearoff_without_context.dart.textual_outline.expect b/pkg/front_end/testcases/constructor_tearoffs/generic_tearoff_without_context.dart.textual_outline.expect
index a5d04bf..16c7e62 100644
--- a/pkg/front_end/testcases/constructor_tearoffs/generic_tearoff_without_context.dart.textual_outline.expect
+++ b/pkg/front_end/testcases/constructor_tearoffs/generic_tearoff_without_context.dart.textual_outline.expect

@@ -3,6 +3,7 @@
   A() {}
   factory A.bar() => new A<X>();
 }
+
 testFoo() => A.foo;
 testFooArgs() => A<int>.foo;
 testNew() => A.new;

diff --git a/pkg/front_end/testcases/constructor_tearoffs/generic_tearoff_without_context.dart.textual_outline_modelled.expect b/pkg/front_end/testcases/constructor_tearoffs/generic_tearoff_without_context.dart.textual_outline_modelled.expect
index bd45e3c..bb92a38 100644
--- a/pkg/front_end/testcases/constructor_tearoffs/generic_tearoff_without_context.dart.textual_outline_modelled.expect
+++ b/pkg/front_end/testcases/constructor_tearoffs/generic_tearoff_without_context.dart.textual_outline_modelled.expect

@@ -1,7 +1,17 @@
-bar() => A.foo;
-
 class A<X> {
+  A() {}
   A.foo() {}
+  factory A.bar() => new A<X>();
 }
 
 main() {}
+method() {}
+testBar() => A.bar;
+testBarArgs() => A<int>.bar;
+testBarExtraArgs() => A<int, String>.bar;
+testFoo() => A.foo;
+testFooArgs() => A<int>.foo;
+testFooExtraArgs() => A<int, String>.foo;
+testNew() => A.new;
+testNewArgs() => A<int>.new;
+testNewExtraArgs() => A<int, String>.new;

diff --git a/pkg/front_end/testcases/constructor_tearoffs/identical_instantiated_function_tearoffs.dart.textual_outline_modelled.expect b/pkg/front_end/testcases/constructor_tearoffs/identical_instantiated_function_tearoffs.dart.textual_outline_modelled.expect
new file mode 100644
index 0000000..d650780
--- /dev/null
+++ b/pkg/front_end/testcases/constructor_tearoffs/identical_instantiated_function_tearoffs.dart.textual_outline_modelled.expect

@@ -0,0 +1,8 @@
+T Function(T) create<T>() => id<T>;
+T id<T>(T t) => t;
+const explicitConstInstantiation = id<int>;
+const int Function(int) implicitConstInstantiation = id;
+expect(expected, actual) {}
+int Function(int) implicitInstantiation = id;
+main() {}
+var explicitInstantiation = id<int>;

diff --git a/pkg/front_end/testcases/constructor_tearoffs/inferred_constructor_tear_off.dart.textual_outline.expect b/pkg/front_end/testcases/constructor_tearoffs/inferred_constructor_tear_off.dart.textual_outline.expect
index 94115d1..f48ab14 100644
--- a/pkg/front_end/testcases/constructor_tearoffs/inferred_constructor_tear_off.dart.textual_outline.expect
+++ b/pkg/front_end/testcases/constructor_tearoffs/inferred_constructor_tear_off.dart.textual_outline.expect

@@ -1,16 +1,20 @@
 final bool inSoundMode = <int?>[] is! List<int>;
 main() {}
+
 class Class1 {
   int field;
   Class1(this.field);
 }
+
 abstract class Interface2 {
   int get field;
 }
+
 class Class2 implements Interface2 {
   final field;
   Class2(this.field);
 }
+
 var Class1_new = Class1.new;
 var Class2_new = Class2.new;
 testInferred() {}

diff --git a/pkg/front_end/testcases/constructor_tearoffs/inferred_constructor_tear_off.dart.textual_outline_modelled.expect b/pkg/front_end/testcases/constructor_tearoffs/inferred_constructor_tear_off.dart.textual_outline_modelled.expect
new file mode 100644
index 0000000..99d1f46
--- /dev/null
+++ b/pkg/front_end/testcases/constructor_tearoffs/inferred_constructor_tear_off.dart.textual_outline_modelled.expect

@@ -0,0 +1,21 @@
+abstract class Interface2 {
+  int get field;
+}
+
+class Class1 {
+  Class1(this.field);
+  int field;
+}
+
+class Class2 implements Interface2 {
+  Class2(this.field);
+  final field;
+}
+
+expect(expected, actual) {}
+final bool inSoundMode = <int?>[] is! List<int>;
+main() {}
+testInferred() {}
+throws(Function() f, {bool inSoundModeOnly: false}) {}
+var Class1_new = Class1.new;
+var Class2_new = Class2.new;

diff --git a/pkg/front_end/testcases/constructor_tearoffs/inferred_non_proper_rename.dart.textual_outline.expect b/pkg/front_end/testcases/constructor_tearoffs/inferred_non_proper_rename.dart.textual_outline.expect
index 71dbef8..b8acf78 100644
--- a/pkg/front_end/testcases/constructor_tearoffs/inferred_non_proper_rename.dart.textual_outline.expect
+++ b/pkg/front_end/testcases/constructor_tearoffs/inferred_non_proper_rename.dart.textual_outline.expect

@@ -1,5 +1,7 @@
 final bool inSoundMode = <int?>[] is! List<int>;
+
 class A<T> {}
+
 typedef F<X extends num> = A<X>;
 typedef G<Y> = A<int>;
 typedef H<X, Y> = A<X>;

diff --git a/pkg/front_end/testcases/constructor_tearoffs/inferred_non_proper_rename.dart.textual_outline_modelled.expect b/pkg/front_end/testcases/constructor_tearoffs/inferred_non_proper_rename.dart.textual_outline_modelled.expect
new file mode 100644
index 0000000..5bf6db5
--- /dev/null
+++ b/pkg/front_end/testcases/constructor_tearoffs/inferred_non_proper_rename.dart.textual_outline_modelled.expect

@@ -0,0 +1,18 @@
+class A<T> {}
+
+const A<int> Function() f1c = F.new;
+const A<int> Function() g1c = G.new;
+const A<int> Function() h1c = H.new;
+const f1a = A<int>.new;
+const f1b = F<int>.new;
+const g1a = A<int>.new;
+const g1b = G<String>.new;
+const h1a = A<int>.new;
+const h1b = H<int, String>.new;
+expect(expected, actual) {}
+final bool inSoundMode = <int?>[] is! List<int>;
+main() {}
+test<T extends num>() {}
+typedef F<X extends num> = A<X>;
+typedef G<Y> = A<int>;
+typedef H<X, Y> = A<X>;

diff --git a/pkg/front_end/testcases/constructor_tearoffs/instantiation.dart.textual_outline.expect b/pkg/front_end/testcases/constructor_tearoffs/instantiation.dart.textual_outline.expect
index 53e6fd0..e1a475c 100644
--- a/pkg/front_end/testcases/constructor_tearoffs/instantiation.dart.textual_outline.expect
+++ b/pkg/front_end/testcases/constructor_tearoffs/instantiation.dart.textual_outline.expect

@@ -3,6 +3,7 @@
   A(X x) {}
   factory A.bar(X x) => new A<X>(x);
 }
+
 A<num> Function(num) test1() => A.foo;
 A<int> Function(int) test2() => A.foo;
 A<num> Function(num) test3() => A.new;

diff --git a/pkg/front_end/testcases/constructor_tearoffs/instantiation.dart.textual_outline_modelled.expect b/pkg/front_end/testcases/constructor_tearoffs/instantiation.dart.textual_outline_modelled.expect
index 88026bf..2ea13b4 100644
--- a/pkg/front_end/testcases/constructor_tearoffs/instantiation.dart.textual_outline_modelled.expect
+++ b/pkg/front_end/testcases/constructor_tearoffs/instantiation.dart.textual_outline_modelled.expect

@@ -1,9 +1,20 @@
-A<dynamic> Function(String) bar3() => A.foo;
-A<int> Function(int) bar2() => A.foo;
-A<num> Function(num) bar1() => A.foo;
+A<dynamic> Function(String) test11() => A.bar;
+A<dynamic> Function(String) test5() => A.foo;
+A<dynamic> Function(String) test6() => A.new;
+A<dynamic> Function(num) test12() => A.bar;
+A<dynamic> Function(num) test7() => A<num>.foo;
+A<dynamic> Function(num) test8() => A<num>.new;
+A<int> Function(int) test10() => A.bar;
+A<int> Function(int) test2() => A.foo;
+A<int> Function(int) test4() => A.new;
+A<num> Function(num) test1() => A.foo;
+A<num> Function(num) test3() => A.new;
+A<num> Function(num) test9() => A.bar;
 
 class A<X extends num> {
+  A(X x) {}
   A.foo(X x) {}
+  factory A.bar(X x) => new A<X>(x);
 }
 
 main() {}

diff --git a/pkg/front_end/testcases/constructor_tearoffs/lowering/inferred_constructor_tear_off.dart.textual_outline.expect b/pkg/front_end/testcases/constructor_tearoffs/lowering/inferred_constructor_tear_off.dart.textual_outline.expect
index 94115d1..f48ab14 100644
--- a/pkg/front_end/testcases/constructor_tearoffs/lowering/inferred_constructor_tear_off.dart.textual_outline.expect
+++ b/pkg/front_end/testcases/constructor_tearoffs/lowering/inferred_constructor_tear_off.dart.textual_outline.expect

@@ -1,16 +1,20 @@
 final bool inSoundMode = <int?>[] is! List<int>;
 main() {}
+
 class Class1 {
   int field;
   Class1(this.field);
 }
+
 abstract class Interface2 {
   int get field;
 }
+
 class Class2 implements Interface2 {
   final field;
   Class2(this.field);
 }
+
 var Class1_new = Class1.new;
 var Class2_new = Class2.new;
 testInferred() {}

diff --git a/pkg/front_end/testcases/constructor_tearoffs/lowering/inferred_constructor_tear_off.dart.textual_outline_modelled.expect b/pkg/front_end/testcases/constructor_tearoffs/lowering/inferred_constructor_tear_off.dart.textual_outline_modelled.expect
index 8944ae7..99d1f46 100644
--- a/pkg/front_end/testcases/constructor_tearoffs/lowering/inferred_constructor_tear_off.dart.textual_outline_modelled.expect
+++ b/pkg/front_end/testcases/constructor_tearoffs/lowering/inferred_constructor_tear_off.dart.textual_outline_modelled.expect

@@ -17,3 +17,5 @@
 main() {}
 testInferred() {}
 throws(Function() f, {bool inSoundModeOnly: false}) {}
+var Class1_new = Class1.new;
+var Class2_new = Class2.new;

diff --git a/pkg/front_end/testcases/constructor_tearoffs/lowering/inferred_non_proper_rename.dart.textual_outline.expect b/pkg/front_end/testcases/constructor_tearoffs/lowering/inferred_non_proper_rename.dart.textual_outline.expect
index 8731bf4..7efc9f8 100644
--- a/pkg/front_end/testcases/constructor_tearoffs/lowering/inferred_non_proper_rename.dart.textual_outline.expect
+++ b/pkg/front_end/testcases/constructor_tearoffs/lowering/inferred_non_proper_rename.dart.textual_outline.expect

@@ -1,9 +1,11 @@
 final bool inSoundMode = <int?>[] is! List<int>;
+
 class A<T> {
   A();
   factory A.fact() => new A<T>();
   factory A.redirect() = A<T>;
 }
+
 typedef F<X extends num> = A<X>;
 typedef G<Y> = A<int>;
 typedef H<X, Y> = A<X>;

diff --git a/pkg/front_end/testcases/constructor_tearoffs/lowering/inferred_non_proper_rename.dart.textual_outline_modelled.expect b/pkg/front_end/testcases/constructor_tearoffs/lowering/inferred_non_proper_rename.dart.textual_outline_modelled.expect
new file mode 100644
index 0000000..ebc6c89
--- /dev/null
+++ b/pkg/front_end/testcases/constructor_tearoffs/lowering/inferred_non_proper_rename.dart.textual_outline_modelled.expect

@@ -0,0 +1,28 @@
+class A<T> {
+  A();
+  factory A.fact() => new A<T>();
+  factory A.redirect() = A<T>;
+}
+
+const A<int> Function() f1c = F.new;
+const A<int> Function() f1f = F.fact;
+const A<int> Function() f1i = F.redirect;
+const A<int> Function() g1c = G.new;
+const A<int> Function() h1c = H.new;
+const f1a = A<int>.new;
+const f1b = F<int>.new;
+const f1d = A<int>.fact;
+const f1e = F<int>.fact;
+const f1g = A<int>.redirect;
+const f1h = F<int>.redirect;
+const g1a = A<int>.new;
+const g1b = G<String>.new;
+const h1a = A<int>.new;
+const h1b = H<int, String>.new;
+expect(expected, actual) {}
+final bool inSoundMode = <int?>[] is! List<int>;
+main() {}
+test<T extends num>() {}
+typedef F<X extends num> = A<X>;
+typedef G<Y> = A<int>;
+typedef H<X, Y> = A<X>;

diff --git a/pkg/front_end/testcases/constructor_tearoffs/lowering/inferred_tear_off.dart.textual_outline.expect b/pkg/front_end/testcases/constructor_tearoffs/lowering/inferred_tear_off.dart.textual_outline.expect
index 12bef00..c125e6f 100644
--- a/pkg/front_end/testcases/constructor_tearoffs/lowering/inferred_tear_off.dart.textual_outline.expect
+++ b/pkg/front_end/testcases/constructor_tearoffs/lowering/inferred_tear_off.dart.textual_outline.expect

@@ -2,17 +2,20 @@
 var B_new = B.new;
 var F_new = F.new;
 var G_new = G.new;
+
 class A {
   int field1 = 0;
   A(this.field1);
   A.named(this.field1);
 }
+
 class B<T> implements A {
   var field1;
   T field2;
   B(this.field1, this.field2);
   B.named(this.field1, this.field2);
 }
+
 typedef F<T> = A;
 typedef G<T extends num> = B;
 var A_named = A.named;

diff --git a/pkg/front_end/testcases/constructor_tearoffs/lowering/inferred_tear_off.dart.textual_outline_modelled.expect b/pkg/front_end/testcases/constructor_tearoffs/lowering/inferred_tear_off.dart.textual_outline_modelled.expect
new file mode 100644
index 0000000..b23c6e8
--- /dev/null
+++ b/pkg/front_end/testcases/constructor_tearoffs/lowering/inferred_tear_off.dart.textual_outline_modelled.expect

@@ -0,0 +1,24 @@
+class A {
+  A(this.field1);
+  A.named(this.field1);
+  int field1 = 0;
+}
+
+class B<T> implements A {
+  B(this.field1, this.field2);
+  B.named(this.field1, this.field2);
+  T field2;
+  var field1;
+}
+
+main() {}
+typedef F<T> = A;
+typedef G<T extends num> = B;
+var A_named = A.named;
+var A_new = A.new;
+var B_named = B<int>.named;
+var B_new = B.new;
+var F_named = F.named;
+var F_new = F.new;
+var G_named = G<int>.named;
+var G_new = G.new;

diff --git a/pkg/front_end/testcases/constructor_tearoffs/lowering/typedef_from_dill/main.dart.textual_outline.expect b/pkg/front_end/testcases/constructor_tearoffs/lowering/typedef_from_dill/main.dart.textual_outline.expect
index 4d2dfc1..a676ddd 100644
--- a/pkg/front_end/testcases/constructor_tearoffs/lowering/typedef_from_dill/main.dart.textual_outline.expect
+++ b/pkg/front_end/testcases/constructor_tearoffs/lowering/typedef_from_dill/main.dart.textual_outline.expect

@@ -1,4 +1,5 @@
 import 'main_lib.dart';
+
 typedef H<X, Y> = A<Y>;
 dynamic H_new = H.new;
 dynamic H_named = H.named;

diff --git a/pkg/front_end/testcases/constructor_tearoffs/lowering/typedef_from_dill/main.dart.textual_outline_modelled.expect b/pkg/front_end/testcases/constructor_tearoffs/lowering/typedef_from_dill/main.dart.textual_outline_modelled.expect
new file mode 100644
index 0000000..ea3a97b
--- /dev/null
+++ b/pkg/front_end/testcases/constructor_tearoffs/lowering/typedef_from_dill/main.dart.textual_outline_modelled.expect

@@ -0,0 +1,13 @@
+import 'main_lib.dart';
+
+dynamic F_fact = F.fact;
+dynamic F_named = F.named;
+dynamic F_new = F.new;
+dynamic F_redirect = F.redirect;
+dynamic H_fact = H.fact;
+dynamic H_named = H.named;
+dynamic H_new = H.new;
+dynamic H_redirect = H.redirect;
+expect(expected, actual) {}
+main() {}
+typedef H<X, Y> = A<Y>;

diff --git a/pkg/front_end/testcases/constructor_tearoffs/lowering/typedef_identical.dart.textual_outline.expect b/pkg/front_end/testcases/constructor_tearoffs/lowering/typedef_identical.dart.textual_outline.expect
index 8ca6604..10356c5 100644
--- a/pkg/front_end/testcases/constructor_tearoffs/lowering/typedef_identical.dart.textual_outline.expect
+++ b/pkg/front_end/testcases/constructor_tearoffs/lowering/typedef_identical.dart.textual_outline.expect

@@ -1,4 +1,5 @@
 import 'typedef_identical_lib.dart';
+
 typedef H<X, Y> = A<Y>;
 var H_new = H.new;
 var H_named = H.named;

diff --git a/pkg/front_end/testcases/constructor_tearoffs/lowering/typedef_identical.dart.textual_outline_modelled.expect b/pkg/front_end/testcases/constructor_tearoffs/lowering/typedef_identical.dart.textual_outline_modelled.expect
new file mode 100644
index 0000000..a3e22a5
--- /dev/null
+++ b/pkg/front_end/testcases/constructor_tearoffs/lowering/typedef_identical.dart.textual_outline_modelled.expect

@@ -0,0 +1,13 @@
+import 'typedef_identical_lib.dart';
+
+expect(expected, actual) {}
+main() {}
+typedef H<X, Y> = A<Y>;
+var F_fact = F.fact;
+var F_named = F.named;
+var F_new = F.new;
+var F_redirect = F.redirect;
+var H_fact = H.fact;
+var H_named = H.named;
+var H_new = H.new;
+var H_redirect = H.redirect;

diff --git a/pkg/front_end/testcases/constructor_tearoffs/nongeneric_tearoff_with_context.dart.textual_outline.expect b/pkg/front_end/testcases/constructor_tearoffs/nongeneric_tearoff_with_context.dart.textual_outline.expect
index 8667cb7..69dd551 100644
--- a/pkg/front_end/testcases/constructor_tearoffs/nongeneric_tearoff_with_context.dart.textual_outline.expect
+++ b/pkg/front_end/testcases/constructor_tearoffs/nongeneric_tearoff_with_context.dart.textual_outline.expect

@@ -4,6 +4,7 @@
   A() {}
   factory A.bar1() => new A();
 }
+
 A Function() test1() => A.foo1;
 A Function() test2() => A.foo2;
 A Function() test3() => A.new;

diff --git a/pkg/front_end/testcases/constructor_tearoffs/nongeneric_tearoff_with_context.dart.textual_outline_modelled.expect b/pkg/front_end/testcases/constructor_tearoffs/nongeneric_tearoff_with_context.dart.textual_outline_modelled.expect
index c7ab6c9..16a7e1c 100644
--- a/pkg/front_end/testcases/constructor_tearoffs/nongeneric_tearoff_with_context.dart.textual_outline_modelled.expect
+++ b/pkg/front_end/testcases/constructor_tearoffs/nongeneric_tearoff_with_context.dart.textual_outline_modelled.expect

@@ -1,9 +1,15 @@
-A Function() bar1() => A.foo1;
-A Function() bar2() => A.foo2;
+A Function() test1() => A.foo1;
+A Function() test2() => A.foo2;
+A Function() test3() => A.new;
+A Function() test5() => A.bar1;
+A Function(int) test4() => A.new;
+A Function(int) test6() => A.bar1;
 
 class A {
+  A() {}
   A.foo1() {}
   A.foo2(int x) {}
+  factory A.bar1() => new A();
 }
 
 main() {}

diff --git a/pkg/front_end/testcases/constructor_tearoffs/nongeneric_tearoff_without_context.dart.textual_outline.expect b/pkg/front_end/testcases/constructor_tearoffs/nongeneric_tearoff_without_context.dart.textual_outline.expect
index 7cdb5cd..17d1d98 100644
--- a/pkg/front_end/testcases/constructor_tearoffs/nongeneric_tearoff_without_context.dart.textual_outline.expect
+++ b/pkg/front_end/testcases/constructor_tearoffs/nongeneric_tearoff_without_context.dart.textual_outline.expect

@@ -3,6 +3,7 @@
   A() {}
   factory A.bar() => new A();
 }
+
 testFoo() => A.foo;
 testNew() => A.new;
 testBar() => A.bar;

diff --git a/pkg/front_end/testcases/constructor_tearoffs/nongeneric_tearoff_without_context.dart.textual_outline_modelled.expect b/pkg/front_end/testcases/constructor_tearoffs/nongeneric_tearoff_without_context.dart.textual_outline_modelled.expect
index 28ca878..b485543 100644
--- a/pkg/front_end/testcases/constructor_tearoffs/nongeneric_tearoff_without_context.dart.textual_outline_modelled.expect
+++ b/pkg/front_end/testcases/constructor_tearoffs/nongeneric_tearoff_without_context.dart.textual_outline_modelled.expect

@@ -1,7 +1,13 @@
-bar() => A.foo;
-
 class A {
+  A() {}
   A.foo() {}
+  factory A.bar() => new A();
 }
 
 main() {}
+testBar() => A.bar;
+testBarExtraArgs() => A<int>.bar;
+testFoo() => A.foo;
+testFooExtraArgs() => A<int>.foo;
+testNew() => A.new;
+testNewExtraArgs() => A<int>.new;

diff --git a/pkg/front_end/testcases/constructor_tearoffs/redirecting_constructors.dart.textual_outline.expect b/pkg/front_end/testcases/constructor_tearoffs/redirecting_constructors.dart.textual_outline.expect
index 1e775a7..bae4d9c 100644
--- a/pkg/front_end/testcases/constructor_tearoffs/redirecting_constructors.dart.textual_outline.expect
+++ b/pkg/front_end/testcases/constructor_tearoffs/redirecting_constructors.dart.textual_outline.expect

@@ -4,6 +4,8 @@
   factory A.redirectingFactoryChild() = B.new;
   factory A.redirectingTwice() = A.redirectingFactory;
 }
+
 class B extends A {}
+
 test() {}
 main() => test();

diff --git a/pkg/front_end/testcases/constructor_tearoffs/redirecting_constructors.dart.textual_outline_modelled.expect b/pkg/front_end/testcases/constructor_tearoffs/redirecting_constructors.dart.textual_outline_modelled.expect
new file mode 100644
index 0000000..de66759
--- /dev/null
+++ b/pkg/front_end/testcases/constructor_tearoffs/redirecting_constructors.dart.textual_outline_modelled.expect

@@ -0,0 +1,11 @@
+class A {
+  A.new();
+  factory A.redirectingFactory() = A.new;
+  factory A.redirectingFactoryChild() = B.new;
+  factory A.redirectingTwice() = A.redirectingFactory;
+}
+
+class B extends A {}
+
+main() => test();
+test() {}

diff --git a/pkg/front_end/testcases/constructor_tearoffs/simple_instantiated_type_literals.dart.textual_outline_modelled.expect b/pkg/front_end/testcases/constructor_tearoffs/simple_instantiated_type_literals.dart.textual_outline_modelled.expect
new file mode 100644
index 0000000..caada6b
--- /dev/null
+++ b/pkg/front_end/testcases/constructor_tearoffs/simple_instantiated_type_literals.dart.textual_outline_modelled.expect

@@ -0,0 +1,3 @@
+bar() {}
+foo() => List<int>;
+main() {}

diff --git a/pkg/front_end/testcases/constructor_tearoffs/simple_proper_rename_identity.dart.textual_outline.expect b/pkg/front_end/testcases/constructor_tearoffs/simple_proper_rename_identity.dart.textual_outline.expect
index 77787a1..3023dc3 100644
--- a/pkg/front_end/testcases/constructor_tearoffs/simple_proper_rename_identity.dart.textual_outline.expect
+++ b/pkg/front_end/testcases/constructor_tearoffs/simple_proper_rename_identity.dart.textual_outline.expect

@@ -1,16 +1,27 @@
 class A1<T> {}
+
 typedef B1<T> = A1<T>;
+
 class A2<T extends num> {}
+
 typedef B2<T extends num> = A2<T>;
+
 class A3<T extends List<dynamic>, S extends Never?> {}
+
 typedef B3<T extends List<Object?>, S extends Null> = A3<T, S>;
+
 class A4<T extends num> {}
+
 typedef B4<T extends int> = A4<T>;
+
 class A5<T extends List<dynamic>, S extends Never?> {}
+
 typedef B5<T extends List<Object?>, S extends Null> = A5;
+
 class StaticIdentityTest {
   const StaticIdentityTest(a, b) : assert(identical(a, b));
 }
+
 test1() => const StaticIdentityTest(A1.new, B1.new);
 test2() => const StaticIdentityTest(A2.new, B2.new);
 test3() => const StaticIdentityTest(A3.new, B3.new);

diff --git a/pkg/front_end/testcases/constructor_tearoffs/simple_proper_rename_identity.dart.textual_outline_modelled.expect b/pkg/front_end/testcases/constructor_tearoffs/simple_proper_rename_identity.dart.textual_outline_modelled.expect
new file mode 100644
index 0000000..3167ee0
--- /dev/null
+++ b/pkg/front_end/testcases/constructor_tearoffs/simple_proper_rename_identity.dart.textual_outline_modelled.expect

@@ -0,0 +1,25 @@
+class A1<T> {}
+
+class A2<T extends num> {}
+
+class A3<T extends List<dynamic>, S extends Never?> {}
+
+class A4<T extends num> {}
+
+class A5<T extends List<dynamic>, S extends Never?> {}
+
+class StaticIdentityTest {
+  const StaticIdentityTest(a, b) : assert(identical(a, b));
+}
+
+main() {}
+test1() => const StaticIdentityTest(A1.new, B1.new);
+test2() => const StaticIdentityTest(A2.new, B2.new);
+test3() => const StaticIdentityTest(A3.new, B3.new);
+test4() => const StaticIdentityTest(A4.new, B4.new);
+test5() => const StaticIdentityTest(A5.new, B5.new);
+typedef B1<T> = A1<T>;
+typedef B2<T extends num> = A2<T>;
+typedef B3<T extends List<Object?>, S extends Null> = A3<T, S>;
+typedef B4<T extends int> = A4<T>;
+typedef B5<T extends List<Object?>, S extends Null> = A5;

diff --git a/pkg/front_end/testcases/constructor_tearoffs/typedef_tearoffs.dart.textual_outline.expect b/pkg/front_end/testcases/constructor_tearoffs/typedef_tearoffs.dart.textual_outline.expect
index c3a7ab9..b8e1aba 100644
--- a/pkg/front_end/testcases/constructor_tearoffs/typedef_tearoffs.dart.textual_outline.expect
+++ b/pkg/front_end/testcases/constructor_tearoffs/typedef_tearoffs.dart.textual_outline.expect

@@ -1,9 +1,11 @@
 class A {}
+
 class B<X> {
   B();
   B.foo();
   factory B.bar() => new B<X>();
 }
+
 typedef DA1 = A;
 typedef DA2<X extends num> = A;
 typedef DB1 = B<String>;

diff --git a/pkg/front_end/testcases/constructor_tearoffs/typedef_tearoffs.dart.textual_outline_modelled.expect b/pkg/front_end/testcases/constructor_tearoffs/typedef_tearoffs.dart.textual_outline_modelled.expect
new file mode 100644
index 0000000..43ab7d6
--- /dev/null
+++ b/pkg/front_end/testcases/constructor_tearoffs/typedef_tearoffs.dart.textual_outline_modelled.expect

@@ -0,0 +1,39 @@
+A Function() test2() => DA1.new;
+A Function() test4() => DA2.new;
+A Function() test5() => DA2<String>.new;
+A Function() test6() => DA2<int>.new;
+B<String> Function() test10() => DB1.foo;
+B<String> Function() test11() => DB1.bar;
+B<String> Function() test24() => DB2.new;
+B<String> Function() test8() => DB1.new;
+B<Y> Function<Y, Z>() test23() => DB3.new;
+B<Y> Function<Y>() test17() => DB2.new;
+B<Y> Function<Y extends num, Z extends String>() test22() => DB3.new;
+B<Y> Function<Y extends num>() test16() => DB2.new;
+B<num> Function() test12() => DB2<num>.new;
+B<num> Function() test13() => DB2<num>.foo;
+B<num> Function() test14() => DB2<num>.bar;
+B<num> Function() test15() => DB2.new;
+B<num> Function() test18() => DB3<num, String>.new;
+B<num> Function() test19() => DB3<num, String>.foo;
+B<num> Function() test20() => DB3<num, String>.bar;
+B<num> Function() test21() => DB3.new;
+B<num> Function() test9() => DB1.new;
+DA1 Function() test1() => DA1.new;
+DA2<num> Function() test3() => DA2.new;
+DB1 Function() test7() => DB1.new;
+
+class A {}
+
+class B<X> {
+  B();
+  B.foo();
+  factory B.bar() => new B<X>();
+}
+
+main() {}
+typedef DA1 = A;
+typedef DA2<X extends num> = A;
+typedef DB1 = B<String>;
+typedef DB2<X extends num> = B<X>;
+typedef DB3<X extends num, Y extends String> = B<X>;

diff --git a/pkg/front_end/testcases/constructor_tearoffs/unnamed_constructor.dart.textual_outline.expect b/pkg/front_end/testcases/constructor_tearoffs/unnamed_constructor.dart.textual_outline.expect
index 3e34a96..f161d57 100644
--- a/pkg/front_end/testcases/constructor_tearoffs/unnamed_constructor.dart.textual_outline.expect
+++ b/pkg/front_end/testcases/constructor_tearoffs/unnamed_constructor.dart.textual_outline.expect

@@ -4,13 +4,17 @@
   factory A.redirectingFactoryChild() = B.new;
   A.redirecting() : this.new();
 }
+
 class B extends A {}
+
 class C {
   final int x;
   const C.new(this.x);
 }
+
 class D extends C {
   D(int x) : super.new(x * 2);
 }
+
 test() {}
 main() {}

diff --git a/pkg/front_end/testcases/constructor_tearoffs/unnamed_constructor.dart.textual_outline_modelled.expect b/pkg/front_end/testcases/constructor_tearoffs/unnamed_constructor.dart.textual_outline_modelled.expect
new file mode 100644
index 0000000..00d195c
--- /dev/null
+++ b/pkg/front_end/testcases/constructor_tearoffs/unnamed_constructor.dart.textual_outline_modelled.expect

@@ -0,0 +1,20 @@
+class A {
+  A.new();
+  A.redirecting() : this.new();
+  factory A.redirectingFactory() = A.new;
+  factory A.redirectingFactoryChild() = B.new;
+}
+
+class B extends A {}
+
+class C {
+  const C.new(this.x);
+  final int x;
+}
+
+class D extends C {
+  D(int x) : super.new(x * 2);
+}
+
+main() {}
+test() {}

diff --git a/pkg/front_end/testcases/textual_outline.status b/pkg/front_end/testcases/textual_outline.status
index ed0e7e4..2722562 100644
--- a/pkg/front_end/testcases/textual_outline.status
+++ b/pkg/front_end/testcases/textual_outline.status

@@ -23,29 +23,6 @@
 const_functions/const_functions_const_ctor: FormatterCrash
 const_functions/const_functions_const_ctor_error: FormatterCrash
 const_functions/const_functions_const_factory: FormatterCrash
-constructor_tearoffs/call_instantiation: FormatterCrash
-constructor_tearoffs/const_tear_off: FormatterCrash
-constructor_tearoffs/dynamic_explicit_instantiation: FormatterCrash
-constructor_tearoffs/explicit_instantiation_errors: FormatterCrash
-constructor_tearoffs/explicit_new_as_unnamed: FormatterCrash
-constructor_tearoffs/generic_tearoff_with_context: FormatterCrash
-constructor_tearoffs/generic_tearoff_without_context: FormatterCrash
-constructor_tearoffs/identical_instantiated_function_tearoffs: FormatterCrash
-constructor_tearoffs/inferred_constructor_tear_off: FormatterCrash
-constructor_tearoffs/inferred_non_proper_rename: FormatterCrash
-constructor_tearoffs/instantiation: FormatterCrash
-constructor_tearoffs/lowering/inferred_constructor_tear_off: FormatterCrash
-constructor_tearoffs/lowering/inferred_non_proper_rename: FormatterCrash
-constructor_tearoffs/lowering/inferred_tear_off: FormatterCrash
-constructor_tearoffs/lowering/typedef_from_dill/main: FormatterCrash
-constructor_tearoffs/lowering/typedef_identical: FormatterCrash
-constructor_tearoffs/nongeneric_tearoff_with_context: FormatterCrash
-constructor_tearoffs/nongeneric_tearoff_without_context: FormatterCrash
-constructor_tearoffs/redirecting_constructors: FormatterCrash
-constructor_tearoffs/simple_instantiated_type_literals: FormatterCrash
-constructor_tearoffs/simple_proper_rename_identity: FormatterCrash
-constructor_tearoffs/typedef_tearoffs: FormatterCrash
-constructor_tearoffs/unnamed_constructor: FormatterCrash
 dart2js/late_fields: FormatterCrash
 dart2js/late_statics: FormatterCrash
 extension_types/simple_getter_resolution: FormatterCrash

diff --git a/tools/VERSION b/tools/VERSION
index 2155d95..adb1407 100644
--- a/tools/VERSION
+++ b/tools/VERSION

@@ -27,5 +27,5 @@
 MAJOR 2
 MINOR 15
 PATCH 0
-PRERELEASE 20
+PRERELEASE 21
 PRERELEASE_PATCH 0
\ No newline at end of file