Implement KeyedStoreICs to grow arrays on out-of-bound stores.

src/heap.cc

Index: src/heap.cc
diff --git a/src/heap.cc b/src/heap.cc
index 042069c15a872c385fde6ccc972b0dbcbebca37d..99a34b55963eb7857669c60ea8ccd5b1a5e07129 100644
--- a/src/heap.cc
+++ b/src/heap.cc
@@ -4559,7 +4559,7 @@ MaybeObject* Heap::AllocateEmptyFixedDoubleArray() {
 MaybeObject* Heap::AllocateUninitializedFixedDoubleArray(
     int length,
     PretenureFlag pretenure) {
-  if (length == 0) return empty_fixed_double_array();
+  if (length == 0) return empty_fixed_array();
 
   Object* elements_object;
   MaybeObject* maybe_obj = AllocateRawFixedDoubleArray(length, pretenure);
@@ -4576,7 +4576,7 @@ MaybeObject* Heap::AllocateUninitializedFixedDoubleArray(
 MaybeObject* Heap::AllocateFixedDoubleArrayWithHoles(
     int length,
     PretenureFlag pretenure) {
-  if (length == 0) return empty_fixed_double_array();
+  if (length == 0) return empty_fixed_array();
 
   Object* elements_object;
   MaybeObject* maybe_obj = AllocateRawFixedDoubleArray(length, pretenure);