[co19] Roll co19 to 3b6147cd64211dace7ea86b9bab7ba48f4a328d2

2024-05-24 sgrekhov22@gmail.com Fixes dart-lang/co19#2684. Update expected errors positions for CFE (dart-lang/co19#2685)
2024-05-24 sgrekhov22@gmail.com dart-lang/co19#2641. Add wildcards do not shadow tests (dart-lang/co19#2683)
2024-05-23 sgrekhov22@gmail.com dart-lang/co19#2641. Add patterns tests (dart-lang/co19#2682)
2024-05-22 sgrekhov22@gmail.com dart-lang/co19#2641. Check that it is still an error to declare more than one enum member named `_` (dart-lang/co19#2674)
2024-05-22 sgrekhov22@gmail.com dart-lang/co19#2641. Add import prefix tests (dart-lang/co19#2681)
2024-05-22 sgrekhov22@gmail.com dart-lang/co19#2641. Add record types tests (dart-lang/co19#2679)
2024-05-22 sgrekhov22@gmail.com dart-lang/co19#2641. Add local functions test (dart-lang/co19#2680)
2024-05-22 sgrekhov22@gmail.com dart-lang/co19#2641. Check that it is still an error to declare more than one extension type member named `_` (dart-lang/co19#2675)
2024-05-21 sgrekhov22@gmail.com dart-lang/co19#2641. Add late variables named `_` tests (dart-lang/co19#2677)
2024-05-21 sgrekhov22@gmail.com dart-lang/co19#2641. Check that it is still an error to declare more than one extension member named _ (dart-lang/co19#2676)
2024-05-19 sgrekhov22@gmail.com Fixes dart-lang/co19#2660. Add missing import to augmented_expression_A01_t05_lib.dart (dart-lang/co19#2673)
2024-05-17 sgrekhov22@gmail.com dart-lang/co19#2641. Check that it is still an error to declare more than one mixin member named `_` (dart-lang/co19#2672)
2024-05-17 sgrekhov22@gmail.com dart-lang/co19#2641. Wildcards. Update expected errors positions for CFE (dart-lang/co19#2671)

Change-Id: Ia94383cb2dc2a5912950ee3e13ee93a9576f3500
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/367963
Reviewed-by: Alexander Thomas <athom@google.com>
Reviewed-by: Erik Ernst <eernst@google.com>
diff --git a/DEPS b/DEPS
index 195e311..a94a0cb 100644
--- a/DEPS
+++ b/DEPS
@@ -54,7 +54,7 @@
 
   # co19 is a cipd package automatically generated for each co19 commit.
   # Use tests/co19/update.sh to update this hash.
-  "co19_rev": "ce52bad581af26062e8da7bdb0b0c5a5fc89ec7e",
+  "co19_rev": "3b6147cd64211dace7ea86b9bab7ba48f4a328d2",
 
   # The internal benchmarks to use. See go/dart-benchmarks-internal
   "benchmarks_internal_rev": "a7c23b2422492dcc515d1ba4abe3609b50e2a139",