Introduce .isMalformed

pkg/compiler/lib/src/typechecker.dart

 // Copyright (c) 2012, 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 dart2js.typechecker;
 
 import 'common.dart';
 import 'common/names.dart' show
     Identifiers;
 import 'common/resolution.dart' show
@@ skipping 1005 matching lines @@
     }
   }
 
   /**
    * Computes the [ElementAccess] for [name] on the [node] possibly using the
    * [element] provided for [node] by the resolver.
    */
   ElementAccess computeAccess(Send node, String name, Element element,
                               MemberKind memberKind,
                               {bool lookupClassMember: false}) {
-    if (element != null && element.isErroneous) {
-      // An error has already been reported for this node.
+    if (Elements.isMalformed(element)) {
       return const DynamicAccess();
     }
     if (node.receiver != null) {
       Element receiverElement = elements[node.receiver];
       if (receiverElement != null) {
         if (receiverElement.isPrefix) {
           if (node.isConditional) {
             // Skip cases like `prefix?.topLevel`.
             return const DynamicAccess();
           }
@@ skipping 18 matching lines @@
 
   /**
    * Computes the [ElementAccess] for [name] on the [node] using the [element]
    * provided for [node] by the resolver.
    */
   ElementAccess computeResolvedAccess(Send node, String name,
                                       Element element, MemberKind memberKind) {
     if (element == null) {
       // foo() where foo is unresolved.
       return lookupMember(node, thisType, name, memberKind, null);
-    } else if (element.isErroneous) {
+    } else if (element.isMalformed) {
       // foo() where foo is erroneous.
       return const DynamicAccess();
     } else if (element.impliesType) {
       // The literal `Foo` where Foo is a class, a typedef, or a type variable.
       if (elements.isTypeLiteral(node)) {
         return new TypeLiteralAccess(elements.getTypeLiteralType(node));
       }
       return createResolvedAccess(node, name, element);
     } else if (element.isClassMember) {
       // foo() where foo is a member.
@@ skipping 122 matching lines @@
     Identifier selector = node.selector.asIdentifier();
     if (Elements.isClosureSend(node, element)) {
       if (element != null) {
         // foo() where foo is a local or a parameter.
         return analyzeInvocation(node, createPromotedAccess(element));
       } else {
         // exp() where exp is some complex expression like (o) or foo().
         DartType type = analyze(node.selector);
         return analyzeInvocation(node, new TypeAccess(type));
       }
-    } else if (Elements.isErroneous(element) && selector == null) {
+    } else if (Elements.isMalformed(element) && selector == null) {
       // exp() where exp is an erroneous construct like `new Unresolved()`.
       DartType type = analyze(node.selector);
       return analyzeInvocation(node, new TypeAccess(type));
     }
 
     String name = selector.source;
 
     if (node.isOperator && identical(name, 'is')) {
       analyze(node.receiver);
       if (!node.isIsNotCheck) {
@@ skipping 779 matching lines @@
 
   visitTypedef(Typedef node) {
     // Do not typecheck [Typedef] nodes.
   }
 
   visitNode(Node node) {
     reporter.internalError(node,
         'Unexpected node ${node.getObjectDescription()} in the type checker.');
   }
 }