A64: Synchronize with r18084.

src/a64/lithium-codegen-a64.h

Index: src/a64/lithium-codegen-a64.h
diff --git a/src/a64/lithium-codegen-a64.h b/src/a64/lithium-codegen-a64.h
index a55b86f8309abf7f5c45840543cdee7356a1c173..e926023bb2661fba763254bd0beaaf8a8ca23b68 100644
--- a/src/a64/lithium-codegen-a64.h
+++ b/src/a64/lithium-codegen-a64.h
@@ -131,7 +131,6 @@ class LCodeGen: public LCodeGenBase {
   // Deferred code support.
   void DoDeferredNumberTagD(LNumberTagD* instr);
   void DoDeferredStackCheck(LStackCheck* instr);
-  void DoDeferredRandom(LRandom* instr);
   void DoDeferredStringCharCodeAt(LStringCharCodeAt* instr);
   void DoDeferredStringCharFromCode(LStringCharFromCode* instr);
   void DoDeferredMathAbsTagged(LMathAbsTagged* instr,
@@ -270,6 +269,9 @@ class LCodeGen: public LCodeGenBase {
                         int* object_index_pointer,
                         int* dematerialized_index_pointer);
 
+  void SaveCallerDoubles();
+  void RestoreCallerDoubles();
+
   // Code generation steps.  Returns true if code generation should continue.
   bool GeneratePrologue();
   bool GenerateDeferredCode();