[DAS] Adds quick-fix for extension name

[email protected]

Fixes: #59723
Change-Id: I3679146ac70dd6bcb936c151cb93dacf8273d4b9
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/401040
Auto-Submit: Felipe Morschel <[email protected]>
Commit-Queue: Samuel Rawlins <[email protected]>
Reviewed-by: Brian Wilkerson <[email protected]>
Reviewed-by: Samuel Rawlins <[email protected]>

Author: FMorschel

pkg/analysis_server/lib/src/services/correction/fix_internal.dart

@@ -252,7 +252,10 @@ import 'package:analyzer/src/generated/parser.dart';
 import 'package:linter/src/lint_codes.dart';
 
 final _builtInLintMultiProducers = {
-  LinterLintCode.comment_references: [ImportLibrary.forType],
+  LinterLintCode.comment_references: [
+    ImportLibrary.forType,
+    ImportLibrary.forExtension,
+  ],
   LinterLintCode.deprecated_member_use_from_same_package_without_message: [
     DataDriven.new,
   ],
@@ -1094,8 +1097,8 @@ final _builtInNonLintProducers = <ErrorCode, List<ProducerGenerator>>{
     //  updated so that only the appropriate subset is generated.
     QualifyReference.new,
   ],
-  CompileTimeErrorCode.UNQUALIFIED_REFERENCE_TO_STATIC_MEMBER_OF_EXTENDED_TYPE:
-      [
+  CompileTimeErrorCode
+      .UNQUALIFIED_REFERENCE_TO_STATIC_MEMBER_OF_EXTENDED_TYPE: [
     // TODO(brianwilkerson): Consider adding fixes to create a field, getter,
     //  method or setter. The existing producers would need to be updated so
     //  that only the appropriate subset is generated.

pkg/analysis_server/test/src/services/correction/fix/import_library_project_test.dart

@@ -314,6 +314,23 @@ void f() {
     await assertNoFix();
   }
 
+  Future<void> test_extension_name() async {
+    createAnalysisOptionsFile(lints: [LintNames.comment_references]);
+    newFile('$testPackageLibPath/lib.dart', '''
+extension Ext on int {}
+''');
+    await resolveTestCode('''
+/// This should import [Ext].
+void f() {}
+''');
+    await assertHasFix('''
+import 'package:test/lib.dart';
+
+/// This should import [Ext].
+void f() {}
+''');
+  }
+
   Future<void> test_extension_notImported_binaryOperator() async {
     newFile('$testPackageLibPath/lib.dart', '''
 extension E on String {
@@ -2164,6 +2181,25 @@ class ImportLibraryProject2Test extends FixProcessorTest {
   @override
   FixKind get kind => DartFixKind.IMPORT_LIBRARY_PROJECT2;
 
+  Future<void> test_extension_name() async {
+    createAnalysisOptionsFile(lints: [LintNames.comment_references]);
+    newFile('$testPackageLibPath/lib1.dart', '''
+extension Ext on int {}
+''');
+    newFile('$testPackageLibPath/lib2.dart', '''
+export 'package:test/lib1.dart';''');
+    await resolveTestCode('''
+/// This should import [Ext].
+void f() {}
+''');
+    await assertHasFix('''
+import 'package:test/lib2.dart';
+
+/// This should import [Ext].
+void f() {}
+''');
+  }
+
   Future<void> test_lib() async {
     newFile('$packagesRootPath/my_pkg/lib/a.dart', '''
 export 'b.dart';
@@ -2540,6 +2576,23 @@ class ImportLibraryProject3Test extends FixProcessorTest {
   @override
   FixKind get kind => DartFixKind.IMPORT_LIBRARY_PROJECT3;
 
+  Future<void> test_extension_name() async {
+    createAnalysisOptionsFile(lints: [LintNames.comment_references]);
+    newFile('$testPackageLibPath/src/lib1.dart', '''
+extension Ext on int {}
+''');
+    await resolveTestCode('''
+/// This should import [Ext].
+void f() {}
+''');
+    await assertHasFix('''
+import 'package:test/src/lib1.dart';
+
+/// This should import [Ext].
+void f() {}
+''');
+  }
+
   Future<void> test_inLibSrc_thisContextRoot_extension() async {
     newFile('$testPackageLibPath/src/lib.dart', '''
 extension E on int {