[Isolates] Merge r 6300:6500 from bleeding_edge to isolates.

src/deoptimizer.h

Index: src/deoptimizer.h
===================================================================
--- src/deoptimizer.h	(revision 6955)
+++ src/deoptimizer.h	(working copy)
@@ -154,14 +154,17 @@
 
   static void VisitAllOptimizedFunctions(OptimizedFunctionVisitor* visitor);
 
-  // Given the relocation info of a call to the stack check stub, patch the
-  // code so as to go unconditionally to the on-stack replacement builtin
-  // instead.
-  static void PatchStackCheckCode(RelocInfo* rinfo, Code* replacement_code);
+  // Patch all stack guard checks in the unoptimized code to
+  // unconditionally call replacement_code.
+  static void PatchStackCheckCode(Code* unoptimized_code,
+                                  Code* check_code,
+                                  Code* replacement_code);
 
-  // Given the relocation info of a call to the on-stack replacement
-  // builtin, patch the code back to the original stack check code.
-  static void RevertStackCheckCode(RelocInfo* rinfo, Code* check_code);
+  // Change all patched stack guard checks in the unoptimized code
+  // back to a normal stack guard check.
+  static void RevertStackCheckCode(Code* unoptimized_code,
+                                   Code* check_code,
+                                   Code* replacement_code);
 
   ~Deoptimizer();