Use Element instead of Symbol.

compiler/java/com/google/dart/compiler/ast/DartTypeParameter.java

Index: compiler/java/com/google/dart/compiler/ast/DartTypeParameter.java
diff --git a/compiler/java/com/google/dart/compiler/ast/DartTypeParameter.java b/compiler/java/com/google/dart/compiler/ast/DartTypeParameter.java
index 11602f4263d9dfe6215547140535a1518da25de5..cf478bb81b7fbf4098aa2257cf4aa195fb385a56 100644
--- a/compiler/java/com/google/dart/compiler/ast/DartTypeParameter.java
+++ b/compiler/java/com/google/dart/compiler/ast/DartTypeParameter.java
@@ -4,8 +4,6 @@
 
 package com.google.dart.compiler.ast;
 
-import com.google.dart.compiler.common.Symbol;
-import com.google.dart.compiler.resolver.Element;
 import com.google.dart.compiler.type.Type;
 
 /**
@@ -14,7 +12,6 @@ import com.google.dart.compiler.type.Type;
 public class DartTypeParameter extends DartDeclaration<DartIdentifier> {
 
   private DartTypeNode bound;
-  private Element element;
   private Type type;
 
   public DartTypeParameter(DartIdentifier name, DartTypeNode bound) {
@@ -39,16 +36,6 @@ public class DartTypeParameter extends DartDeclaration<DartIdentifier> {
   }
 
   @Override
-  public Element getSymbol() {
-    return element;
-  }
-
-  @Override
-  public void setSymbol(Symbol symbol) {
-    this.element = (Element)symbol;
-  }
-
-  @Override
   public Type getType() {
     return type;
   }