Make TestJSArrayForAllocationMemento less awkward.

src/arm/codegen-arm.cc

Index: src/arm/codegen-arm.cc
diff --git a/src/arm/codegen-arm.cc b/src/arm/codegen-arm.cc
index e19c5abb00393c67837d488f4d8fcd488a6744e1..717f286315e0840b83d142967e8185b9ddc7536b 100644
--- a/src/arm/codegen-arm.cc
+++ b/src/arm/codegen-arm.cc
@@ -402,8 +402,7 @@ void ElementsTransitionGenerator::GenerateMapChangeElementsTransition(
   // -----------------------------------
   if (mode == TRACK_ALLOCATION_SITE) {
     ASSERT(allocation_memento_found != NULL);
-    __ TestJSArrayForAllocationMemento(r2, r4);
-    __ b(eq, allocation_memento_found);
+    __ JumpIfJSArrayHasAllocationMemento(r2, r4, allocation_memento_found);
   }
 
   // Set transitioned map.
@@ -432,8 +431,7 @@ void ElementsTransitionGenerator::GenerateSmiToDouble(
   Label loop, entry, convert_hole, gc_required, only_change_map, done;
 
   if (mode == TRACK_ALLOCATION_SITE) {
-    __ TestJSArrayForAllocationMemento(r2, r4);
-    __ b(eq, fail);
+    __ JumpIfJSArrayHasAllocationMemento(r2, r4, fail);
   }
 
   // Check for empty arrays, which only require a map transition and no changes
@@ -559,8 +557,7 @@ void ElementsTransitionGenerator::GenerateDoubleToObject(
   Label entry, loop, convert_hole, gc_required, only_change_map;
 
   if (mode == TRACK_ALLOCATION_SITE) {
-    __ TestJSArrayForAllocationMemento(r2, r4);
-    __ b(eq, fail);
+    __ JumpIfJSArrayHasAllocationMemento(r2, r4, fail);
   }
 
   // Check for empty arrays, which only require a map transition and no changes