Small fixes in preparation for SemanticVisitor.

pkg/compiler/lib/src/elements/modelx.dart

Index: pkg/compiler/lib/src/elements/modelx.dart
diff --git a/pkg/compiler/lib/src/elements/modelx.dart b/pkg/compiler/lib/src/elements/modelx.dart
index 40b247a0a292054c07b8c7830b3a39650bbc4ed6..19eee6a1de472de630757085c6929ec3a6ca44d9 100644
--- a/pkg/compiler/lib/src/elements/modelx.dart
+++ b/pkg/compiler/lib/src/elements/modelx.dart
@@ -1864,7 +1864,7 @@ abstract class BaseFunctionElementX
 }
 
 abstract class FunctionElementX extends BaseFunctionElementX
-    with AnalyzableElementX implements MemberElement {
+    with AnalyzableElementX implements MethodElement {
   FunctionElementX(String name,
                    ElementKind kind,
                    Modifiers modifiers,
@@ -2935,8 +2935,6 @@ class TypeVariableElementX extends ElementX with AstElementMixin
 
   Node parseNode(compiler) => node;
 
-  String toString() => "${enclosingElement.toString()}.${name}";
-
   Token get position => node.getBeginToken();
 
   accept(ElementVisitor visitor) => visitor.visitTypeVariableElement(this);