make Handle a synonym of Local

src/checks.h

Index: src/checks.h
diff --git a/src/checks.h b/src/checks.h
index 6303855fc862fe2c9a8aa603a2453211a37a3eac..b7254af472d32afd628c7c8cebbdf7ddfb1e0b54 100644
--- a/src/checks.h
+++ b/src/checks.h
@@ -16,7 +16,8 @@
 namespace v8 {
 
 class Value;
-template <class T> class Handle;
+template <class T>
+class Local;
 
 namespace internal {
 
@@ -43,16 +44,12 @@ void CheckEqualsHelper(const char* file, int line, const char* expected_source,
 
 void CheckNonEqualsHelper(const char* file, int line,
                           const char* unexpected_source,
-                          v8::Handle<v8::Value> unexpected,
-                          const char* value_source,
-                          v8::Handle<v8::Value> value);
-
-void CheckEqualsHelper(const char* file,
-                       int line,
-                       const char* expected_source,
-                       v8::Handle<v8::Value> expected,
-                       const char* value_source,
-                       v8::Handle<v8::Value> value);
+                          v8::Local<v8::Value> unexpected,
+                          const char* value_source, v8::Local<v8::Value> value);
+
+void CheckEqualsHelper(const char* file, int line, const char* expected_source,
+                       v8::Local<v8::Value> expected, const char* value_source,
+                       v8::Local<v8::Value> value);
 
 #define DCHECK_TAG_ALIGNED(address) \
   DCHECK((reinterpret_cast<intptr_t>(address) & HeapObjectTagMask()) == 0)