[co19] Roll co19 to cd23849a5bf84a73466b5107e23bb04cf3d9b38a

2024-01-05 sgrekhov22@gmail.com Fixes dart-lang/co19#2465. Fix roll failures (dart-lang/co19#2466)
2024-01-04 sgrekhov22@gmail.com dart-lang/co19#2420. Add object-pattern exhaustiveness tests (dart-lang/co19#2454)
2024-01-04 sgrekhov22@gmail.com dart-lang/co19#2420. Add relational pattern exhaustiveness tests (dart-lang/co19#2463)
2024-01-03 sgrekhov22@gmail.com dart-lang/co19#2420. Add missed experimental flags (dart-lang/co19#2462)
2024-01-03 sgrekhov22@gmail.com Fixes dart-lang/co19#2436. Add test for external constructors with initializers (dart-lang/co19#2461)
2024-01-02 sgrekhov22@gmail.com dart-lang/co19#2420. Add more dynamic semantics extension type tests (dart-lang/co19#2459)
2024-01-02 sgrekhov22@gmail.com Fixes dart-lang/co19#2436. Add tests for external and redirecting constructors with initializing formals (dart-lang/co19#2460)
2023-12-29 sgrekhov22@gmail.com dart-lang/co19#1400. Add object pattern tests for extension types (dart-lang/co19#2456)
2023-12-29 sgrekhov22@gmail.com dart-lang/co19#1400. Add type inference tests for extension types (dart-lang/co19#2455)
2023-12-29 sgrekhov22@gmail.com dart-lang/co19#2420. Add switch statement check to the existing exhaustiveness tests (dart-lang/co19#2452)

Change-Id: Iee0668f14a35bb3c47aa67b35b1e5c6d8abe8021
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/345040
Reviewed-by: William Hesse <whesse@google.com>
Commit-Queue: Erik Ernst <eernst@google.com>
Reviewed-by: Erik Ernst <eernst@google.com>
diff --git a/DEPS b/DEPS
index cc264e8..3ebbc68 100644
--- a/DEPS
+++ b/DEPS
@@ -55,7 +55,7 @@
 
   # co19 is a cipd package automatically generated for each co19 commit.
   # Use tests/co19/update.sh to update this hash.
-  "co19_rev": "89ec72cfbf8de66ce8190433d6bcdfdaf3599e23",
+  "co19_rev": "cd23849a5bf84a73466b5107e23bb04cf3d9b38a",
 
   # The internal benchmarks to use. See go/dart-benchmarks-internal
   "benchmarks_internal_rev": "f048a4a853e3062056d39c3db100acdde42f16d6",