Reland "ARM64: Add NEON support"

src/crankshaft/arm64/delayed-masm-arm64.h

Index: src/crankshaft/arm64/delayed-masm-arm64.h
diff --git a/src/crankshaft/arm64/delayed-masm-arm64.h b/src/crankshaft/arm64/delayed-masm-arm64.h
index 2dd36b725ed0a9213f7843e09f835a85220bfb23..1cf416021e601c893d829d41947d9666d2239483 100644
--- a/src/crankshaft/arm64/delayed-masm-arm64.h
+++ b/src/crankshaft/arm64/delayed-masm-arm64.h
@@ -61,8 +61,8 @@ class DelayedMasm BASE_EMBEDDED {
   inline void Mov(const Register& rd,
                   const Operand& operand,
                   DiscardMoveMode discard_mode = kDontDiscardForSameWReg);
-  inline void Fmov(FPRegister fd, FPRegister fn);
-  inline void Fmov(FPRegister fd, double imm);
+  inline void Fmov(VRegister fd, VRegister fn);
+  inline void Fmov(VRegister fd, double imm);
   inline void LoadObject(Register result, Handle<Object> object);
   // Instructions which try to merge which the pending instructions.
   void StackSlotMove(LOperand* src, LOperand* dst);