ARM64: never record safepoint with doubles

src/arm64/code-stubs-arm64.h

Index: src/arm64/code-stubs-arm64.h
diff --git a/src/arm64/code-stubs-arm64.h b/src/arm64/code-stubs-arm64.h
index a21f315a09bb3e0bb29fe96f08bcbc888ca6e378..8548ea522923d957b06d00c440bd4f85c191be2c 100644
--- a/src/arm64/code-stubs-arm64.h
+++ b/src/arm64/code-stubs-arm64.h
@@ -56,15 +56,14 @@ class StringHelper : public AllStatic {
 
 class StoreRegistersStateStub: public PlatformCodeStub {
  public:
-  StoreRegistersStateStub(Isolate* isolate, SaveFPRegsMode with_fp)
-      : PlatformCodeStub(isolate), save_doubles_(with_fp) {}
+  explicit StoreRegistersStateStub(Isolate* isolate)
+      : PlatformCodeStub(isolate) {}
 
   static Register to_be_pushed_lr() { return ip0; }
   static void GenerateAheadOfTime(Isolate* isolate);
  private:
   Major MajorKey() const { return StoreRegistersState; }
-  int MinorKey() const { return (save_doubles_ == kSaveFPRegs) ? 1 : 0; }
-  SaveFPRegsMode save_doubles_;
+  int MinorKey() const { return 0; }
 
   void Generate(MacroAssembler* masm);
 };
@@ -72,14 +71,13 @@ class StoreRegistersStateStub: public PlatformCodeStub {
 
 class RestoreRegistersStateStub: public PlatformCodeStub {
  public:
-  RestoreRegistersStateStub(Isolate* isolate, SaveFPRegsMode with_fp)
-      : PlatformCodeStub(isolate), save_doubles_(with_fp) {}
+  explicit RestoreRegistersStateStub(Isolate* isolate)
+      : PlatformCodeStub(isolate) {}
 
   static void GenerateAheadOfTime(Isolate* isolate);
  private:
   Major MajorKey() const { return RestoreRegistersState; }
-  int MinorKey() const { return (save_doubles_ == kSaveFPRegs) ? 1 : 0; }
-  SaveFPRegsMode save_doubles_;
+  int MinorKey() const { return 0; }
 
   void Generate(MacroAssembler* masm);
 };