Refactor index operator in SimpleTypeInferrer.

pkg/compiler/lib/src/resolution/send_resolver.dart

 // Copyright (c) 2015, 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.
 
 part of dart2js.semantics_visitor;
 
 enum SendStructureKind {
   GET,
   SET,
   INVOKE,
@@ skipping 322 matching lines @@
           return new ConstantAccess.typedefTypeLiteral(constant);
         case TypeKind.TYPE_VARIABLE:
           return new StaticAccess.typeParameterTypeLiteral(dartType.element);
         case TypeKind.DYNAMIC:
           return new ConstantAccess.dynamicTypeLiteral(constant);
         default:
           return internalError(node, "Unexpected type literal type: $dartType");
       }
     } else if (node.isSuperCall) {
       if (Elements.isUnresolved(element)) {
-        return new StaticAccess.unresolvedSuper(element);
+        if (isCompound) {
+          if (Elements.isUnresolved(getter)) {
+            // TODO(johnniwinther): Ensure that [getter] is not null. This
+            // happens in the case of missing super getter.
+            return new CompoundAccessSemantics(
+                CompoundAccessKind.SUPER_UNRESOLVED_GETTER, getter, element);
+          } else {
+            return new CompoundAccessSemantics(
+                CompoundAccessKind.SUPER_UNRESOLVED_SETTER, getter, element);
+          }
+        } else {
+          return new StaticAccess.unresolvedSuper(element);
+        }
       } else if (isCompound && Elements.isUnresolved(getter)) {
         // TODO(johnniwinther): Ensure that [getter] is not null. This happens
         // in the case of missing super getter.
-        return new StaticAccess.unresolved(getter);
+        return new CompoundAccessSemantics(
+            CompoundAccessKind.SUPER_UNRESOLVED_GETTER, getter, element);
       } else if (element.isField) {
         if (getter != null && getter != element) {
           CompoundAccessKind accessKind;
           if (getter.isField) {
             accessKind = CompoundAccessKind.SUPER_FIELD_FIELD;
           } else if (getter.isGetter) {
             accessKind = CompoundAccessKind.SUPER_GETTER_FIELD;
           } else {
             return internalError(node,
                "Unsupported super call: $node : $element/$getter.");
@@ skipping 432 matching lines @@
       return internalError(node, "Unexpected variable $element.");
     }
     if (element.isConst) {
       ConstantExpression constant = elements.getConstant(element.initializer);
       return new ConstantVariableStructure(kind, node, element, constant);
     } else {
       return new NonConstantVariableStructure(kind, node, element);
     }
   }
 }