Fix Issue 18628 by refixing Issue 18468

editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/internal/type/TypeParameterTypeImpl.java

Index: editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/internal/type/TypeParameterTypeImpl.java
diff --git a/editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/internal/type/TypeParameterTypeImpl.java b/editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/internal/type/TypeParameterTypeImpl.java
index 00101f128094e90a894c6e6921965885f2afb58b..3294926d4839add65644858ed51d5c4d51be907b 100644
--- a/editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/internal/type/TypeParameterTypeImpl.java
+++ b/editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/internal/type/TypeParameterTypeImpl.java
@@ -13,8 +13,6 @@
  */
 package com.google.dart.engine.internal.type;
 
-import com.google.dart.engine.element.Element;
-import com.google.dart.engine.element.LibraryElement;
 import com.google.dart.engine.element.TypeParameterElement;
 import com.google.dart.engine.internal.element.ElementPair;
 import com.google.dart.engine.type.Type;
@@ -37,11 +35,6 @@ public class TypeParameterTypeImpl extends TypeImpl implements TypeParameterType
   public static final TypeParameterType[] EMPTY_ARRAY = new TypeParameterType[0];
 
   /**
-   * The name of the type Type from dart.core.
-   */
-  private static final String TYPE_CLASS_NAME = "Type"; //$NON-NLS-1$
-
-  /**
    * Return an array containing the type parameter types defined by the given array of type
    * parameter elements.
    * 
@@ -133,15 +126,6 @@ public class TypeParameterTypeImpl extends TypeImpl implements TypeParameterType
   private boolean isMoreSpecificThan(Type s, Set<Type> visitedTypes, boolean withDynamic,
       Set<TypePair> visitedTypePairs) {
     //
-    // If s is of type Type from dart.core, return true
-    //
-    Element sElement = s.getElement();
-    LibraryElement sLibrary = sElement != null ? sElement.getLibrary() : null;
-    if (sLibrary != null && sLibrary.isDartCore() && s.getName().equals(TYPE_CLASS_NAME)) {
-      return true;
-    }
-
-    //
     // T is a type parameter and S is the upper bound of T.
     //
     Type bound = getElement().getBound();