diff --git a/pkg/front_end/test/comments_on_certain_arguments_tool.dart b/pkg/front_end/test/comments_on_certain_arguments_tool.dart
index 9109db8..8d1a909 100644
--- a/pkg/front_end/test/comments_on_certain_arguments_tool.dart
+++ b/pkg/front_end/test/comments_on_certain_arguments_tool.dart
@@ -8,18 +8,14 @@
 import 'dart:io'
     show Directory, File, FileSystemEntity, exitCode, stdin, stdout;
 
-import 'package:_fe_analyzer_shared/src/messages/severity.dart' show Severity;
 import 'package:_fe_analyzer_shared/src/scanner/token.dart'
     show CommentToken, Token;
 import 'package:front_end/src/api_prototype/compiler_options.dart' as api;
 import 'package:front_end/src/api_prototype/file_system.dart' as api;
 import 'package:front_end/src/api_unstable/ddc.dart'
     show CompilerContext, IncrementalCompiler, ProcessedOptions, Severity;
-import 'package:front_end/src/base/processed_options.dart'
-    show ProcessedOptions;
 import 'package:front_end/src/compute_platform_binaries_location.dart'
     show computePlatformBinariesLocation;
-import 'package:front_end/src/fasta/compiler_context.dart' show CompilerContext;
 import 'package:front_end/src/fasta/dill/dill_target.dart' show DillTarget;
 import 'package:front_end/src/fasta/incremental_compiler.dart'
     show IncrementalCompiler, IncrementalKernelTarget;
diff --git a/pkg/front_end/test/constant_evaluator_benchmark.dart b/pkg/front_end/test/constant_evaluator_benchmark.dart
index 66a4cdb..77b6084 100644
--- a/pkg/front_end/test/constant_evaluator_benchmark.dart
+++ b/pkg/front_end/test/constant_evaluator_benchmark.dart
@@ -32,12 +32,10 @@
 import 'package:front_end/src/fasta/kernel/kernel_target.dart';
 import 'package:kernel/ast.dart';
 import 'package:kernel/binary/ast_from_binary.dart';
-import 'package:kernel/core_types.dart';
 import 'package:kernel/target/changed_structure_notifier.dart';
 
 import 'package:kernel/target/targets.dart'
     show ConstantsBackend, DiagnosticReporter, Target, TargetFlags;
-import 'package:kernel/type_environment.dart';
 
 import "package:vm/target/flutter.dart" show FlutterTarget;
 
diff --git a/pkg/front_end/test/covariance_check/covariance_check_test.dart b/pkg/front_end/test/covariance_check/covariance_check_test.dart
index ed0e223..622ebfa 100644
--- a/pkg/front_end/test/covariance_check/covariance_check_test.dart
+++ b/pkg/front_end/test/covariance_check/covariance_check_test.dart
@@ -6,8 +6,6 @@
 
 import 'dart:io' show Directory, Platform;
 import 'package:_fe_analyzer_shared/src/testing/id.dart';
-import 'package:_fe_analyzer_shared/src/testing/id_testing.dart'
-    show DataInterpreter, runTests;
 import 'package:_fe_analyzer_shared/src/testing/id_testing.dart';
 import 'package:front_end/src/testing/id_testing_helper.dart';
 import 'package:front_end/src/testing/id_testing_utils.dart';
diff --git a/pkg/front_end/test/id_tests/definite_assignment_test.dart b/pkg/front_end/test/id_tests/definite_assignment_test.dart
index 5dd584d..a5e19c3 100644
--- a/pkg/front_end/test/id_tests/definite_assignment_test.dart
+++ b/pkg/front_end/test/id_tests/definite_assignment_test.dart
@@ -6,8 +6,6 @@
 
 import 'dart:io' show Directory, Platform;
 import 'package:_fe_analyzer_shared/src/testing/id.dart' show ActualData, Id;
-import 'package:_fe_analyzer_shared/src/testing/id_testing.dart'
-    show DataInterpreter, runTests;
 import 'package:_fe_analyzer_shared/src/testing/id_testing.dart';
 import 'package:front_end/src/testing/id_testing_helper.dart';
 import 'package:front_end/src/fasta/builder/member_builder.dart';
diff --git a/pkg/front_end/test/id_tests/definite_unassignment_test.dart b/pkg/front_end/test/id_tests/definite_unassignment_test.dart
index fdc8ce2..23291f8 100644
--- a/pkg/front_end/test/id_tests/definite_unassignment_test.dart
+++ b/pkg/front_end/test/id_tests/definite_unassignment_test.dart
@@ -6,8 +6,6 @@
 
 import 'dart:io' show Directory, Platform;
 import 'package:_fe_analyzer_shared/src/testing/id.dart' show ActualData, Id;
-import 'package:_fe_analyzer_shared/src/testing/id_testing.dart'
-    show DataInterpreter, runTests;
 import 'package:_fe_analyzer_shared/src/testing/id_testing.dart';
 import 'package:front_end/src/testing/id_testing_helper.dart';
 import 'package:front_end/src/fasta/builder/member_builder.dart';
diff --git a/pkg/front_end/test/id_tests/nullability_test.dart b/pkg/front_end/test/id_tests/nullability_test.dart
index 4980ffb..c485ef9 100644
--- a/pkg/front_end/test/id_tests/nullability_test.dart
+++ b/pkg/front_end/test/id_tests/nullability_test.dart
@@ -6,8 +6,6 @@
 
 import 'dart:io' show Directory, Platform;
 import 'package:_fe_analyzer_shared/src/testing/id.dart' show ActualData, Id;
-import 'package:_fe_analyzer_shared/src/testing/id_testing.dart'
-    show DataInterpreter, runTests;
 import 'package:_fe_analyzer_shared/src/testing/id_testing.dart';
 import 'package:front_end/src/testing/id_testing_helper.dart';
 import 'package:kernel/ast.dart' hide Variance;
diff --git a/pkg/front_end/test/parser_test_parser_creator.dart b/pkg/front_end/test/parser_test_parser_creator.dart
index d1ab0c5..002d238 100644
--- a/pkg/front_end/test/parser_test_parser_creator.dart
+++ b/pkg/front_end/test/parser_test_parser_creator.dart
@@ -8,9 +8,6 @@
 import 'dart:typed_data';
 
 import 'package:_fe_analyzer_shared/src/parser/parser.dart';
-import 'package:_fe_analyzer_shared/src/parser/formal_parameter_kind.dart';
-import 'package:_fe_analyzer_shared/src/parser/listener.dart';
-import 'package:_fe_analyzer_shared/src/parser/member_kind.dart';
 import 'package:_fe_analyzer_shared/src/scanner/utf8_bytes_scanner.dart';
 import 'package:_fe_analyzer_shared/src/scanner/token.dart';
 import 'package:dart_style/dart_style.dart' show DartFormatter;
diff --git a/pkg/front_end/test/patching/patching_test.dart b/pkg/front_end/test/patching/patching_test.dart
index e22e19f..3389f04 100644
--- a/pkg/front_end/test/patching/patching_test.dart
+++ b/pkg/front_end/test/patching/patching_test.dart
@@ -7,8 +7,6 @@
 import 'dart:io' show Directory, Platform;
 
 import 'package:_fe_analyzer_shared/src/testing/id.dart' show ActualData, Id;
-import 'package:_fe_analyzer_shared/src/testing/id_testing.dart'
-    show DataInterpreter, runTests;
 import 'package:_fe_analyzer_shared/src/testing/id_testing.dart';
 import 'package:front_end/src/api_prototype/compiler_options.dart';
 import 'package:front_end/src/api_prototype/experimental_flags.dart';
diff --git a/pkg/front_end/test/scanner_replacement_test.dart b/pkg/front_end/test/scanner_replacement_test.dart
index 867e68e..0e90322 100644
--- a/pkg/front_end/test/scanner_replacement_test.dart
+++ b/pkg/front_end/test/scanner_replacement_test.dart
@@ -5,7 +5,6 @@
 // @dart = 2.9
 
 import 'package:_fe_analyzer_shared/src/scanner/scanner.dart' as fasta;
-import 'package:_fe_analyzer_shared/src/scanner/token.dart' as fasta;
 import 'package:_fe_analyzer_shared/src/scanner/error_token.dart' as fasta;
 import 'package:_fe_analyzer_shared/src/scanner/token.dart' as analyzer;
 import 'package:_fe_analyzer_shared/src/scanner/errors.dart'
diff --git a/pkg/front_end/test/summary_generator_test.dart b/pkg/front_end/test/summary_generator_test.dart
index 04deb3b..5a66026 100644
--- a/pkg/front_end/test/summary_generator_test.dart
+++ b/pkg/front_end/test/summary_generator_test.dart
@@ -6,7 +6,6 @@
 
 import 'package:front_end/src/api_prototype/front_end.dart';
 import 'package:front_end/src/testing/compiler_common.dart';
-import 'package:kernel/ast.dart';
 import 'package:kernel/kernel.dart';
 
 import 'package:test/test.dart';
diff --git a/pkg/front_end/test/text_representation/text_representation_test.dart b/pkg/front_end/test/text_representation/text_representation_test.dart
index f804385..8b188e7 100644
--- a/pkg/front_end/test/text_representation/text_representation_test.dart
+++ b/pkg/front_end/test/text_representation/text_representation_test.dart
@@ -6,8 +6,6 @@
 
 import 'dart:io' show Directory, Platform;
 import 'package:_fe_analyzer_shared/src/testing/id.dart';
-import 'package:_fe_analyzer_shared/src/testing/id_testing.dart'
-    show DataInterpreter, runTests;
 import 'package:_fe_analyzer_shared/src/testing/id_testing.dart';
 import 'package:front_end/src/api_prototype/compiler_options.dart';
 import 'package:front_end/src/api_prototype/experimental_flags.dart'
diff --git a/runtime/tests/vm/dart/byte_array_test.dart b/runtime/tests/vm/dart/byte_array_test.dart
index a476301..441681f 100644
--- a/runtime/tests/vm/dart/byte_array_test.dart
+++ b/runtime/tests/vm/dart/byte_array_test.dart
@@ -1,7 +1,7 @@
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization_counter_threshold=10 --disable_alloc_stubs_after_gc --no-background-compilation
+// VMOptions=--optimization_counter_threshold=10 --no-background-compilation
 
 // Library tag to be able to run in html test framework.
 library byte_array_test;
diff --git a/runtime/tests/vm/dart_2/byte_array_test.dart b/runtime/tests/vm/dart_2/byte_array_test.dart
index a476301..441681f 100644
--- a/runtime/tests/vm/dart_2/byte_array_test.dart
+++ b/runtime/tests/vm/dart_2/byte_array_test.dart
@@ -1,7 +1,7 @@
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
-// VMOptions=--optimization_counter_threshold=10 --disable_alloc_stubs_after_gc --no-background-compilation
+// VMOptions=--optimization_counter_threshold=10 --no-background-compilation
 
 // Library tag to be able to run in html test framework.
 library byte_array_test;
diff --git a/runtime/vm/compiler/backend/slot.cc b/runtime/vm/compiler/backend/slot.cc
index e541010..473697b 100644
--- a/runtime/vm/compiler/backend/slot.cc
+++ b/runtime/vm/compiler/backend/slot.cc
@@ -214,19 +214,17 @@
   }
 }
 
-const Slot& Slot::GetTypeArgumentsSlotAt(Thread* thread, intptr_t offset) {
-  ASSERT(offset != Class::kNoTypeArguments);
-  return SlotCache::Instance(thread).Canonicalize(Slot(
-      Kind::kTypeArguments,
-      IsImmutableBit::encode(true) |
-          IsCompressedBit::encode(TypeArguments::ContainsCompressedPointers()),
-      kTypeArgumentsCid, offset, ":type_arguments",
-      /*static_type=*/nullptr, kTagged));
-}
-
 const Slot& Slot::GetTypeArgumentsSlotFor(Thread* thread, const Class& cls) {
-  return GetTypeArgumentsSlotAt(
-      thread, compiler::target::Class::TypeArgumentsFieldOffset(cls));
+  const intptr_t offset =
+      compiler::target::Class::TypeArgumentsFieldOffset(cls);
+  ASSERT(offset != Class::kNoTypeArguments);
+  return SlotCache::Instance(thread).Canonicalize(
+      Slot(Kind::kTypeArguments,
+           IsImmutableBit::encode(true) |
+               IsCompressedBit::encode(
+                   compiler::target::Class::HasCompressedPointers(cls)),
+           kTypeArgumentsCid, offset, ":type_arguments",
+           /*static_type=*/nullptr, kTagged));
 }
 
 const Slot& Slot::GetContextVariableSlotFor(Thread* thread,
diff --git a/runtime/vm/compiler/backend/slot.h b/runtime/vm/compiler/backend/slot.h
index bfcf561..c1019e5 100644
--- a/runtime/vm/compiler/backend/slot.h
+++ b/runtime/vm/compiler/backend/slot.h
@@ -185,14 +185,12 @@
   // Returns a slot that represents length field for the given [array_cid].
   static const Slot& GetLengthFieldForArrayCid(intptr_t array_cid);
 
-  // Return a slot that represents type arguments field at the given offset
-  // or for the given class.
+  // Return a slot that represents type arguments field for the given class.
   //
   // We do not distinguish type argument fields within disjoint
   // class hierarchies: type argument fields at the same offset would be
   // represented by the same Slot object. Type argument slots are final
   // so disambiguating type arguments fields does not improve alias analysis.
-  static const Slot& GetTypeArgumentsSlotAt(Thread* thread, intptr_t offset);
   static const Slot& GetTypeArgumentsSlotFor(Thread* thread, const Class& cls);
 
   // Returns a slot at a specific [index] in a [RawTypeArgument] vector.
diff --git a/runtime/vm/flag_list.h b/runtime/vm/flag_list.h
index d0c85d0..86ede97 100644
--- a/runtime/vm/flag_list.h
+++ b/runtime/vm/flag_list.h
@@ -99,7 +99,6 @@
     "Run optimizing compilation in background")                                \
   P(check_token_positions, bool, false,                                        \
     "Check validity of token positions while compiling flow graphs")           \
-  P(collect_code, bool, false, "Attempt to GC infrequently used code.")        \
   P(collect_dynamic_function_names, bool, true,                                \
     "Collects all dynamic function names to identify unique targets")          \
   P(compactor_tasks, int, 2,                                                   \
@@ -112,7 +111,6 @@
     "Deoptimize on every N stack overflow checks")                             \
   P(deoptimize_on_runtime_call_every, int, 0,                                  \
     "Deoptimize functions on every runtime call.")                             \
-  R(disable_alloc_stubs_after_gc, false, bool, false, "Stress testing flag.")  \
   R(dump_megamorphic_stats, false, bool, false,                                \
     "Dump megamorphic cache statistics")                                       \
   R(dump_symbol_stats, false, bool, false, "Dump symbol table statistics")     \
@@ -123,8 +121,6 @@
   R(strict_null_safety_checks, false, bool, false,                             \
     "Enable strict type checks for non-nullable types and required "           \
     "parameters.")                                                             \
-  P(enable_kernel_expression_compilation, bool, true,                          \
-    "Compile expressions with the Kernel front-end.")                          \
   P(enable_mirrors, bool, true,                                                \
     "Disable to make importing dart:mirrors an error.")                        \
   P(enable_ffi, bool, true, "Disable to make importing dart:ffi an error.")    \
diff --git a/tools/VERSION b/tools/VERSION
index 64a9a48..97a5a3b 100644
--- a/tools/VERSION
+++ b/tools/VERSION
@@ -27,5 +27,5 @@
 MAJOR 2
 MINOR 14
 PATCH 0
-PRERELEASE 115
+PRERELEASE 116
 PRERELEASE_PATCH 0
\ No newline at end of file