Issue 27386. Fix for 'use similar' Quick Fix for import-prefixed identifiers.

pkg/analysis_server/test/services/correction/fix_test.dart

Index: pkg/analysis_server/test/services/correction/fix_test.dart
diff --git a/pkg/analysis_server/test/services/correction/fix_test.dart b/pkg/analysis_server/test/services/correction/fix_test.dart
index 60897d94f81436aebae6b50fa22ea3b6b52a3358..9bc4a4f4bc8bf7ee168990b0715d659c8711ebdc 100644
--- a/pkg/analysis_server/test/services/correction/fix_test.dart
+++ b/pkg/analysis_server/test/services/correction/fix_test.dart
@@ -3971,6 +3971,23 @@ const a = const A();
 ''');
   }
 
+  test_undefinedClass_useSimilar_BAD_prefixed() async {
+    resolveTestUnit('''
+import 'dart:async' as c;
+main() {
+  c.Fture v = null;
+}
+''');
+    await assertHasFix(
+        DartFixKind.CHANGE_TO,
+        '''
+import 'dart:async' as c;
+main() {
+  c.Future v = null;
+}
+''');
+  }
+
   test_undefinedClass_useSimilar_fromImport() async {
     resolveTestUnit('''
 main() {
@@ -4370,6 +4387,33 @@ main() {
 ''');
   }
 
+  test_undefinedFunction_useSimilar_prefixed_fromImport() async {
+    resolveTestUnit('''
+import 'dart:core' as c;
+main() {
+  c.prnt(42);
+}
+''');
+    await assertHasFix(
+        DartFixKind.CHANGE_TO,
+        '''
+import 'dart:core' as c;
+main() {
+  c.print(42);
+}
+''');
+  }
+
+  test_undefinedFunction_useSimilar_prefixed_ignoreLocal() async {
+    resolveTestUnit('''
+import 'dart:async' as c;
+main() {
+  c.main();
+}
+''');
+    await assertNoFix(DartFixKind.CHANGE_TO);
+  }
+
   test_undefinedFunction_useSimilar_thisLibrary() async {
     resolveTestUnit('''
 myFunction() {}