Support for inlining methods when some arguments are missing.

pkg/analysis_server/test/services/refactoring/inline_method_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.refactoring.inline_method;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/protocol.dart' hide Element;
 import 'package:analysis_server/src/services/refactoring/inline_method.dart';
@@ skipping 980 matching lines @@
     _createRefactoring('test({');
     // validate change
     return _assertSuccessfulRefactoring(r'''
 main() {
   print(10 + 20);
   print(10 + 20);
 }
 ''');
   }
 
+  test_noArgument_named_hasDefault() {
+    verifyNoTestUnitErrors = false;
+    indexTestUnit(r'''
+test({a: 42}) {
+  print(a);
+}
+main() {
+  test();
+}
+''');
+    _createRefactoring('test(');
+    // validate change
+    return _assertSuccessfulRefactoring(r'''
+main() {
+  print(42);
+}
+''');
+  }
+
+  test_noArgument_positional_hasDefault() {
+    verifyNoTestUnitErrors = false;
+    indexTestUnit(r'''
+test([a = 42]) {
+  print(a);
+}
+main() {
+  test();
+}
+''');
+    _createRefactoring('test(');
+    // validate change
+    return _assertSuccessfulRefactoring(r'''
+main() {
+  print(42);
+}
+''');
+  }
+
+  test_noArgument_positional_noDefault() {
+    verifyNoTestUnitErrors = false;
+    indexTestUnit(r'''
+test([a]) {
+  print(a);
+}
+main() {
+  test();
+}
+''');
+    _createRefactoring('test(');
+    // validate change
+    return _assertSuccessfulRefactoring(r'''
+main() {
+  print(null);
+}
+''');
+  }
+
+  test_noArgument_required() {
+    verifyNoTestUnitErrors = false;
+    indexTestUnit(r'''
+test(a) {
+  print(a);
+}
+main() {
+  test();
+}
+''');
+    _createRefactoring('test();');
+    // error
+    return refactoring.checkAllConditions().then((status) {
+      var location = new SourceRange(findOffset('test();'), 'test()'.length);
+      assertRefactoringStatus(
+          status,
+          RefactoringProblemSeverity.ERROR,
+          expectedMessage: 'No argument for the parameter "a".',
+          expectedContextRange: location);
+    });
+  }
+
   test_reference_expressionBody() {
     indexTestUnit(r'''
 String message() => 'Hello, World!';
 main() {
   print(message);
 }
 ''');
     _createRefactoring('message()');
     // validate change
     return _assertSuccessfulRefactoring(r'''
@@ skipping 294 matching lines @@
         });
       });
     });
   }
 
   void _createRefactoring(String search) {
     int offset = findOffset(search);
     refactoring = new InlineMethodRefactoring(searchEngine, testUnit, offset);
   }
 }