[co19] Roll co19 to cd2670bfc29f0be99ca9d3e079f314f686680afc

2023-04-04 [email protected] Fixes dart-lang/co19#1985. Roll failures fixed (dart-lang/co19#1986)
2023-04-04 [email protected] Fixes dart-lang/co19#1983. Typo fixed in type_inference_A22_t01.dart (dart-lang/co19#1984)
2023-04-03 [email protected] Fixes dart-lang/co19#1978. Add processing of HINT.UNREACHABLE_SWITCH_CASE (dart-lang/co19#1982)
2023-04-03 [email protected] dart-lang/co19#1401. Exhaustiveness tests added (dart-lang/co19#1974)
2023-03-31 [email protected] Fixes dart-lang/co19#1976. Runtime errors fixed (dart-lang/co19#1981)
2023-03-31 [email protected] Fixes dart-lang/co19#1976. Update map pattern tests according to the new matching rules (dart-lang/co19#1977)
2023-03-31 [email protected] dart-lang/co19#1401. Additional test for the rest element of a list pattern (dart-lang/co19#1980)

Change-Id: I5be25e8f96d081028d68b5086c33b7432f1c8a66
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/292883
Commit-Queue: Erik Ernst <[email protected]>
Reviewed-by: Erik Ernst <[email protected]>

Author: sgrekhov

DEPS

@@ -50,7 +50,7 @@ vars = {
 
   # co19 is a cipd package. Use update.sh in tests/co19[_2] to update these
   # hashes.
-  "co19_rev": "7edd464c87e1cd453d7c4410cf2ee1240a6320d7",
+  "co19_rev": "cd2670bfc29f0be99ca9d3e079f314f686680afc",
   # This line prevents conflicts when both packages are rolled simultaneously.
   "co19_2_rev": "93b818c9cf570a63cbea56508e393770787fd5ab",