Add a pubspec dev_dependency from analyzer to linter.

This is needed because
pkg/analyzer/test/src/dart/micro/file_resolution.dart
imports package:linter/src/rules.dart.

Change-Id: Ida47237044637f1f6790b344221e5846d020d418
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/149761
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>
Commit-Queue: Paul Berry <paulberry@google.com>
diff --git a/pkg/analyzer/pubspec.yaml b/pkg/analyzer/pubspec.yaml
index fddcc83..3786641 100644
--- a/pkg/analyzer/pubspec.yaml
+++ b/pkg/analyzer/pubspec.yaml
@@ -25,6 +25,7 @@
 dev_dependencies:
   analysis_tool:
     path: ../analysis_tool
+  linter: any
   matcher: ^0.12.3
   pedantic: ^1.9.0
   test: ^1.0.0