Issue 6283. Support type literals as expressions.

compiler/java/com/google/dart/compiler/resolver/Resolver.java

Index: compiler/java/com/google/dart/compiler/resolver/Resolver.java
diff --git a/compiler/java/com/google/dart/compiler/resolver/Resolver.java b/compiler/java/com/google/dart/compiler/resolver/Resolver.java
index dcb4704159f488b2b7575580416eb0aebffd455a..a50bcebfc078fc4163c64162fb8563bf01eb46b5 100644
--- a/compiler/java/com/google/dart/compiler/resolver/Resolver.java
+++ b/compiler/java/com/google/dart/compiler/resolver/Resolver.java
@@ -1343,19 +1343,9 @@ public class Resolver {
             return typeProvider.getTypeType().getElement();
           }
           break;
+        case FUNCTION_TYPE_ALIAS:
         case TYPE_VARIABLE:
-          // Type variables are not legal in identifier expressions, but the type variable
-          // may be hiding a class element.
-          LibraryElement libraryElement = scope.getLibrary();
-          Scope libraryScope = libraryElement.getScope();
-          // dip again at the library level.
-          element = libraryScope.findElement(libraryElement, name);
-          if (element == null) {
-            onError(x, ResolverErrorCode.TYPE_VARIABLE_NOT_ALLOWED_IN_IDENTIFIER);
-          } else {
-            return checkResolvedIdentifier(x, isQualifier, libraryScope, name, element);
-          }
-          break;
+          return typeProvider.getTypeType().getElement();
         default:
           break;
       }