remove invalid completions in method declaration param list

pkg/analysis_server/test/services/completion/completion_test_util.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.completion.util;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/protocol.dart' as protocol
     show Element, ElementKind;
@@ skipping 2042 matching lines @@
   test_FormalParameterList() {
     // FormalParameterList MethodDeclaration
     addTestSource('''
       foo() { }
       void bar() { }
       class A {a(^) { }}''');
     computeFast();
     return computeFull((bool result) {
       expect(request.replacementOffset, completionOffset);
       expect(request.replacementLength, 0);
-      assertSuggestLocalFunction('foo', null);
-      assertSuggestLocalMethod('a', 'A', null);
+      assertNotSuggested('foo');
+      assertNotSuggested('a');
       assertSuggestLocalClass('A');
       assertSuggestImportedClass('String');
-      assertSuggestImportedFunction('identical', 'bool');
+      assertNotSuggested('identical');
       assertNotSuggested('bar');
     });
   }
 
   test_ForStatement_body() {
     // Block  ForStatement
     addTestSource('main(args) {for (int i; i < 10; ++i) {^}}');
     computeFast();
     return computeFull((bool result) {
       expect(request.replacementOffset, completionOffset);
@@ skipping 1604 matching lines @@
       assertNotSuggested('bar2');
       assertNotSuggested('_B');
       assertSuggestLocalClass('Y');
       assertSuggestLocalClass('C');
       assertSuggestLocalVariable('f', null);
       assertNotSuggested('x');
       assertNotSuggested('e');
     });
   }
 }