Issue 21842. Fix incremental resolving of parameters of function typed parameters.

pkg/analyzer/test/generated/incremental_resolver_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 engine.incremental_resolver_test;
 
 import 'package:analyzer/src/generated/ast.dart';
 import 'package:analyzer/src/generated/element.dart';
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/error.dart';
@@ skipping 2129 matching lines @@
   void test_topLevelFunction_localVariable_remove() {
     _resolveUnit(r'''
 int main(int a, int b) {
   int res = a * b;
   return a + b;
 }
 ''');
     _resolve(_editString('int res = a * b;', ''), _isBlock);
   }
 
+  void test_topLevelFunction_parameter_inFunctionTyped_rename() {
+    _resolveUnit(r'''
+test(f(int a, int b)) {
+}
+''');
+    _resolve(_editString('test(f(int a', 'test(f2(int a2'), _isDeclaration);
+  }
+
   void test_topLevelFunction_parameter_rename() {
     _resolveUnit(r'''
 int main(int a, int b) {
   return a + b;
 }
 ''');
     _resolve(_editString(r'''(int a, int b) {
   return a + b;''', r'''(int first, int b) {
   return first + b;'''), _isDeclaration);
   }
@@ skipping 1940 matching lines @@
     _visitList(node.metadata, other.metadata);
     _visitNode(node.identifier, other.identifier);
   }
 
   static void assertSameResolution(CompilationUnit actual,
       CompilationUnit expected) {
     _SameResolutionValidator validator = new _SameResolutionValidator(expected);
     actual.accept(validator);
   }
 }