s390: Remove usages of Heap::NewSpaceStart and its external reference

src/s390/codegen-s390.cc

Index: src/s390/codegen-s390.cc
diff --git a/src/s390/codegen-s390.cc b/src/s390/codegen-s390.cc
index a655b5241a928cff54828d33f0082579f1655d25..6636a7ca1d00e1e850e672a30b8e20936c79c301 100644
--- a/src/s390/codegen-s390.cc
+++ b/src/s390/codegen-s390.cc
@@ -123,7 +123,7 @@ void ElementsTransitionGenerator::GenerateMapChangeElementsTransition(
 
   if (mode == TRACK_ALLOCATION_SITE) {
     DCHECK(allocation_memento_found != NULL);
-    __ JumpIfJSArrayHasAllocationMemento(receiver, scratch_elements,
+    __ JumpIfJSArrayHasAllocationMemento(receiver, scratch_elements, r1,
                                          allocation_memento_found);
   }
 
@@ -153,7 +153,7 @@ void ElementsTransitionGenerator::GenerateSmiToDouble(
                      scratch2));
 
   if (mode == TRACK_ALLOCATION_SITE) {
-    __ JumpIfJSArrayHasAllocationMemento(receiver, elements, fail);
+    __ JumpIfJSArrayHasAllocationMemento(receiver, elements, scratch2, fail);
   }
 
   // Check for empty arrays, which only require a map transition and no changes
@@ -278,7 +278,7 @@ void ElementsTransitionGenerator::GenerateDoubleToObject(
                      scratch));
 
   if (mode == TRACK_ALLOCATION_SITE) {
-    __ JumpIfJSArrayHasAllocationMemento(receiver, elements, fail);
+    __ JumpIfJSArrayHasAllocationMemento(receiver, elements, scratch3, fail);
   }
 
   // Check for empty arrays, which only require a map transition and no changes