fix #27353, support `@checked` covariant parameters in DDC

pkg/dev_compiler/pubspec.yaml

Index: pkg/dev_compiler/pubspec.yaml
diff --git a/pkg/dev_compiler/pubspec.yaml b/pkg/dev_compiler/pubspec.yaml
index 30a5bb3a87871424021eb6344769faf9c07f3cce..7abbb62b044b3e88cf1c4c123c2a7966649558b6 100644
--- a/pkg/dev_compiler/pubspec.yaml
+++ b/pkg/dev_compiler/pubspec.yaml
@@ -16,6 +16,7 @@ dependencies:
   func: ^0.1.0
   html: ^0.12.0
   js: ^0.6.0
+  meta: ^1.0.3
   path: ^1.3.0
   pub_semver: ^1.1.0
   source_maps: ^0.10.0
@@ -31,15 +32,9 @@ dev_dependencies:
   webdriver: ^1.1.0
 
 dependency_overrides:
-  # This is here until we can update package:test and dart_style
-  analyzer:
-    path: ../analyzer
+  # Depend directly on packages in the same repositiory
+  analyzer: { path: ../analyzer }
+  meta: { path: ../meta }
 
 environment:
   sdk: ">=1.12.0 <2.0.0"
-
-executables:
-  # Similar to "analyzer.dart" and its command line "dartanalyzer" we use
-  # "dartdevc".
-  dartdevc: dartdevc
-  dev_compiler: dartdevc