Issue 24459. Fix for 'Create Method' QF in different unit.

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

 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 library test.services.correction.fix;
 
 import 'package:analysis_server/edit/fix/fix_core.dart';
 import 'package:analysis_server/src/protocol.dart' hide AnalysisError;
 import 'package:analysis_server/src/services/correction/fix.dart';
 import 'package:analysis_server/src/services/correction/fix_internal.dart';
@@ skipping 4155 matching lines @@
   void myUndefinedMethod() {
   }
 }
 main() {
   var a = new A();
   a.myUndefinedMethod();
 }
 ''');
   }
 
+  void test_undefinedMethod_parameterType_differentPrefixInTargetUnit() {
+    String code2 = r'''
+library test2;
+import 'test3.dart' as bbb;
+export 'test3.dart';
+class D {
+}
+''';
+    addSource('/test2.dart', code2);
+    addSource(
+        '/test3.dart',
+        r'''
+library test3;
+class E {}
+''');
+    resolveTestUnit('''
+library test;
+import 'test2.dart' as aaa;
+main(aaa.D d, aaa.E e) {
+  d.foo(e);
+}
+''');
+    AnalysisError error = _findErrorToFix();
+    fix = _assertHasFix(DartFixKind.CREATE_METHOD, error);
+    change = fix.change;
+    // apply to "test2.dart"
+    List<SourceFileEdit> fileEdits = change.edits;
+    expect(fileEdits, hasLength(1));
+    SourceFileEdit fileEdit = change.edits[0];
+    expect(fileEdit.file, '/test2.dart');
+    expect(
+        SourceEdit.applySequence(code2, fileEdit.edits),
+        r'''
+library test2;
+import 'test3.dart' as bbb;
+export 'test3.dart';
+class D {
+  void foo(bbb.E e) {
+  }
+}
+''');
+  }
+
+  void test_undefinedMethod_parameterType_inTargetUnit() {
+    String code2 = r'''
+library test2;
+class D {
+}
+class E {}
+''';
+    addSource('/test2.dart', code2);
+    resolveTestUnit('''
+library test;
+import 'test2.dart' as test2;
+main(test2.D d, test2.E e) {
+  d.foo(e);
+}
+''');
+    AnalysisError error = _findErrorToFix();
+    fix = _assertHasFix(DartFixKind.CREATE_METHOD, error);
+    change = fix.change;
+    // apply to "test2.dart"
+    List<SourceFileEdit> fileEdits = change.edits;
+    expect(fileEdits, hasLength(1));
+    SourceFileEdit fileEdit = change.edits[0];
+    expect(fileEdit.file, '/test2.dart');
+    expect(
+        SourceEdit.applySequence(code2, fileEdit.edits),
+        r'''
+library test2;
+class D {
+  void foo(E e) {
+  }
+}
+class E {}
+''');
+  }
+
   void test_undefinedMethod_useSimilar_ignoreOperators() {
     resolveTestUnit('''
 main(Object object) {
   object.then();
 }
 ''');
     assertNoFix(DartFixKind.CHANGE_TO);
   }
 
   void test_undefinedMethod_useSimilar_qualified() {
@@ skipping 249 matching lines @@
       int offset = resultCode.indexOf(search);
       positions.add(new Position(testFile, offset));
     }
     return positions;
   }
 
   void _performAnalysis() {
     while (context.performAnalysisTask().hasMoreWork);
   }
 }