Sloppy eval declarations should not shadow lexical function declarations

src/contexts.h

Index: src/contexts.h
diff --git a/src/contexts.h b/src/contexts.h
index 3ae127ad506a449b8e2d662aa8b4c3c72a4909b4..9ca60d05c118fcabcf0b10915e272427f5fbaa33 100644
--- a/src/contexts.h
+++ b/src/contexts.h
@@ -505,11 +505,10 @@ class Context: public FixedArray {
   // 3) result.is_null():
   //    There was no binding found, *index is always -1 and *attributes is
   //    always ABSENT.
-  Handle<Object> Lookup(Handle<String> name,
-                        ContextLookupFlags flags,
-                        int* index,
-                        PropertyAttributes* attributes,
-                        BindingFlags* binding_flags);
+  Handle<Object> Lookup(Handle<String> name, ContextLookupFlags flags,
+                        int* index, PropertyAttributes* attributes,
+                        BindingFlags* binding_flags,
+                        VariableMode* variable_mode);
 
   // Code generation support.
   static int SlotOffset(int index) {