A64: Synchronize with r17635.

src/x64/lithium-codegen-x64.h

Index: src/x64/lithium-codegen-x64.h
diff --git a/src/x64/lithium-codegen-x64.h b/src/x64/lithium-codegen-x64.h
index 090f961508aab03241fea551afd76a00e122e0f0..060cbe8211edafcb52d320c336f0f5353a0e33b2 100644
--- a/src/x64/lithium-codegen-x64.h
+++ b/src/x64/lithium-codegen-x64.h
@@ -193,7 +193,10 @@ class LCodeGen: public LCodeGenBase {
 
   void CallRuntimeFromDeferred(Runtime::FunctionId id,
                                int argc,
-                               LInstruction* instr);
+                               LInstruction* instr,
+                               LOperand* context);
+
+  void LoadContextFromDeferred(LOperand* context);
 
   enum RDIState {
     RDI_UNINITIALIZED,
@@ -220,6 +223,10 @@ class LCodeGen: public LCodeGenBase {
   void DeoptimizeIf(Condition cc, LEnvironment* environment);
   void ApplyCheckIf(Condition cc, LBoundsCheck* check);
 
+  bool DeoptEveryNTimes() {
+    return FLAG_deopt_every_n_times != 0 && !info()->IsStub();
+  }
+
   void AddToTranslation(LEnvironment* environment,
                         Translation* translation,
                         LOperand* op,