[web-fixit] Make regress45529_test minification-agnostic

Change-Id: I93eaaf56fefa02e7f630b5711d9781cd651b1dad
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/339783
Auto-Submit: Mayank Patke <fishythefish@google.com>
Reviewed-by: Bob Nystrom <rnystrom@google.com>
Commit-Queue: Bob Nystrom <rnystrom@google.com>

tests/language/regress/regress45529_test.dart

diff --git a/tests/language/regress/regress45529_test.dart b/tests/language/regress/regress45529_test.dart
index 6cd4ed2..179b07d 100644
--- a/tests/language/regress/regress45529_test.dart
+++ b/tests/language/regress/regress45529_test.dart
@@ -6,7 +6,7 @@
 
 void main() {
   final baz = Foo<Null>().baz;
-  Expect.equals("Baz<Bar<Null>?>", baz.runtimeType.toString());
+  Expect.equals(Baz<Bar<Null>?>, baz.runtimeType);
   baz.v = baz.v;
 }