fix completion in for statement

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 1835 matching lines @@
     });
   }
 
   test_ForEachStatement_body_typed() {
     // Block  ForEachStatement
     addTestSource('main(args) {for (int foo in bar) {^}}');
     computeFast();
     return computeFull((bool result) {
       expect(request.replacementOffset, completionOffset);
       expect(request.replacementLength, 0);
+      assertSuggestParameter('args', null);
       assertSuggestLocalVariable('foo', 'int');
       assertSuggestImportedClass('Object');
     });
   }
 
   test_ForEachStatement_body_untyped() {
     // Block  ForEachStatement
     addTestSource('main(args) {for (foo in bar) {^}}');
     computeFast();
     return computeFull((bool result) {
       expect(request.replacementOffset, completionOffset);
       expect(request.replacementLength, 0);
+      assertSuggestParameter('args', null);
       assertSuggestLocalVariable('foo', null);
       assertSuggestImportedClass('Object');
     });
   }
 
+  test_ForEachStatement_iterable() {
+    // SimpleIdentifier  ForEachStatement  Block
+    addTestSource('main(args) {for (int foo in ^) {}}');
+    computeFast();
+    return computeFull((bool result) {
+      expect(request.replacementOffset, completionOffset);
+      expect(request.replacementLength, 0);
+      assertSuggestParameter('args', null);
+      assertSuggestImportedClass('Object');
+    });
+  }
+
+  test_ForEachStatement_loopVariable() {
+    // SimpleIdentifier  ForEachStatement  Block
+    addTestSource('main(args) {for (^ in args) {}}');
+    computeFast();
+    return computeFull((bool result) {
+      expect(request.replacementOffset, completionOffset);
+      expect(request.replacementLength, 0);
+      assertNotSuggested('args');
+      assertSuggestImportedClass('String');
+    });
+  }
+
+  test_ForEachStatement_loopVariable_type() {
+    // SimpleIdentifier  ForEachStatement  Block
+    addTestSource('main(args) {for (^ foo in args) {}}');
+    computeFast();
+    return computeFull((bool result) {
+      expect(request.replacementOffset, completionOffset);
+      expect(request.replacementLength, 0);
+      assertNotSuggested('args');
+      assertNotSuggested('foo');
+      assertSuggestImportedClass('String');
+    });
+  }
+
+  test_ForEachStatement_loopVariable_type2() {
+    // DeclaredIdentifier  ForEachStatement  Block
+    addTestSource('main(args) {for (S^ foo in args) {}}');
+    computeFast();
+    return computeFull((bool result) {
+      expect(request.replacementOffset, completionOffset - 1);
+      expect(request.replacementLength, 1);
+      assertNotSuggested('args');
+      assertNotSuggested('foo');
+      assertSuggestImportedClass('String');
+    });
+  }
+
   test_FormalParameterList() {
     // FormalParameterList MethodDeclaration
     addTestSource('''
       foo() { }
       void bar() { }
       class A {a(^) { }}''');
     computeFast();
     return computeFull((bool result) {
       expect(request.replacementOffset, completionOffset);
       expect(request.replacementLength, 0);
@@ skipping 1012 matching lines @@
       assertNotSuggested('bar2');
       assertNotSuggested('_B');
       assertSuggestLocalClass('Y');
       assertSuggestLocalClass('C');
       assertSuggestLocalVariable('f', null);
       assertNotSuggested('x');
       assertNotSuggested('e');
     });
   }
 }