[co19] Roll co19_2 to 0454b178fdf6697e898b5e5c7ee553a9bc266faa

2023-08-24 [email protected] dart-lang/co19#2232. Fix secondary errors in not_a_constant_in_superclass_t02.dart (dart-lang/co19#2234)

Change-Id: I382acf4573314a19624eae308a2f3e39794dc7d8
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/322403
Reviewed-by: Alexander Thomas <[email protected]>
Commit-Queue: Alexander Thomas <[email protected]>

Author: sgrekhov

DEPS

@@ -55,7 +55,7 @@ vars = {
   # hashes.
   "co19_rev": "c7f412ab8b0ad444eea4d6dbd7616b475e050fab",
   # This line prevents conflicts when both packages are rolled simultaneously.
-  "co19_2_rev": "3756b19f79b85b7640a6805dd2c819792a13041c",
+  "co19_2_rev": "0454b178fdf6697e898b5e5c7ee553a9bc266faa",
 
   # The internal benchmarks to use. See go/dart-benchmarks-internal
   "benchmarks_internal_rev": "f048a4a853e3062056d39c3db100acdde42f16d6",