Make TestJSArrayForAllocationMemento less awkward.

src/x64/macro-assembler-x64.cc

Index: src/x64/macro-assembler-x64.cc
diff --git a/src/x64/macro-assembler-x64.cc b/src/x64/macro-assembler-x64.cc
index b3336e6eabbce0f7b9d49033035e622b2150cc37..9dcb9d1689841bbb757e52b25da82ad1ad5f0130 100644
--- a/src/x64/macro-assembler-x64.cc
+++ b/src/x64/macro-assembler-x64.cc
@@ -4921,8 +4921,8 @@ void MacroAssembler::CheckEnumCache(Register null_value, Label* call_runtime) {
 
 void MacroAssembler::TestJSArrayForAllocationMemento(
     Register receiver_reg,
-    Register scratch_reg) {
-  Label no_memento_available;
+    Register scratch_reg,
+    Label* no_memento_found) {
   ExternalReference new_space_start =
       ExternalReference::new_space_start(isolate());
   ExternalReference new_space_allocation_top =
@@ -4932,12 +4932,11 @@ void MacroAssembler::TestJSArrayForAllocationMemento(
       JSArray::kSize + AllocationMemento::kSize - kHeapObjectTag));
   movq(kScratchRegister, new_space_start);
   cmpq(scratch_reg, kScratchRegister);
-  j(less, &no_memento_available);
+  j(less, no_memento_found);
   cmpq(scratch_reg, ExternalOperand(new_space_allocation_top));
-  j(greater, &no_memento_available);
+  j(greater, no_memento_found);
   CompareRoot(MemOperand(scratch_reg, -AllocationMemento::kSize),
               Heap::kAllocationMementoMapRootIndex);
-  bind(&no_memento_available);
 }