Remove dependence of code-stubs on codegen, the virtual frame code generator....

src/debug.cc

Index: src/debug.cc
===================================================================
--- src/debug.cc	(revision 5369)
+++ src/debug.cc	(working copy)
@@ -1443,7 +1443,7 @@
 // Check whether a code stub with the specified major key is a possible break
 // point location when looking for source break locations.
 bool Debug::IsSourceBreakStub(Code* code) {
-  CodeStub::Major major_key = code->major_key();
+  CodeStub::Major major_key = CodeStub::GetMajorKey(code);
   return major_key == CodeStub::CallFunction;
 }
 
@@ -1451,7 +1451,7 @@
 // Check whether a code stub with the specified major key is a possible break
 // location.
 bool Debug::IsBreakStub(Code* code) {
-  CodeStub::Major major_key = code->major_key();
+  CodeStub::Major major_key = CodeStub::GetMajorKey(code);
   return major_key == CodeStub::CallFunction ||
          major_key == CodeStub::StackCheck;
 }