Remove the virtual declaration from a couple of non-virtual JumpTarget

methods to avoid compiler warnings with some gcc versions.

Review URL: http://codereview.chromium.org/3170036

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@5314 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/jump-target-heavy.h

@@ -117,7 +117,7 @@ class JumpTarget : public ZoneObject {  // Shadows are dynamically allocated.
   // the target and the fall-through.
   virtual void Branch(Condition cc, Hint hint = no_hint);
   virtual void Branch(Condition cc, Result* arg, Hint hint = no_hint);
-  virtual void Branch(Condition cc,
+  void Branch(Condition cc,
               Result* arg0,
               Result* arg1,
               Hint hint = no_hint);
@@ -127,7 +127,7 @@ class JumpTarget : public ZoneObject {  // Shadows are dynamically allocated.
   // jump.
   virtual void Bind();
   virtual void Bind(Result* arg);
-  virtual void Bind(Result* arg0, Result* arg1);
+  void Bind(Result* arg0, Result* arg1);
 
   // Emit a call to a jump target.  There must be a current frame at
   // the call.  The frame at the target is the same as the current