[crankshaft] Added checks to tail call instructions that we don't have to restore caller doubles.

src/crankshaft/arm64/lithium-codegen-arm64.cc

Index: src/crankshaft/arm64/lithium-codegen-arm64.cc
diff --git a/src/crankshaft/arm64/lithium-codegen-arm64.cc b/src/crankshaft/arm64/lithium-codegen-arm64.cc
index 363d3dc129e788096565375514ec2452aaefd99b..b63b5fe49179c2a1fd5777b0241d3b4842a9c826 100644
--- a/src/crankshaft/arm64/lithium-codegen-arm64.cc
+++ b/src/crankshaft/arm64/lithium-codegen-arm64.cc
@@ -1532,6 +1532,7 @@ void LCodeGen::DoApplyArguments(LApplyArguments* instr) {
 
   InvokeFlag flag = CALL_FUNCTION;
   if (instr->hydrogen()->tail_call_mode() == TailCallMode::kAllow) {
+    DCHECK(!info()->saves_caller_doubles());
     // TODO(ishell): drop current frame before pushing arguments to the stack.
     flag = JUMP_FUNCTION;
     ParameterCount actual(x0);
@@ -2869,6 +2870,7 @@ void LCodeGen::DoInvokeFunction(LInvokeFunction* instr) {
   bool is_tail_call = hinstr->tail_call_mode() == TailCallMode::kAllow;
 
   if (is_tail_call) {
+    DCHECK(!info()->saves_caller_doubles());
     ParameterCount actual(instr->arity());
     // It is safe to use x3, x4 and x5 as scratch registers here given that
     // 1) we are not going to return to caller function anyway,