Introduce a code stub version of Array.prototype.push

src/runtime/runtime.h

Index: src/runtime/runtime.h
diff --git a/src/runtime/runtime.h b/src/runtime/runtime.h
index 226e0ea85e72c4ec18f1f933a867b7e41f0625bc..d1f54b10a61f18dc79e99240f5eeaa45e5bcfe93 100644
--- a/src/runtime/runtime.h
+++ b/src/runtime/runtime.h
@@ -42,6 +42,7 @@ namespace internal {
   F(ArrayConstructor, -1, 1)         \
   F(NewArray, -1 /* >= 3 */, 1)      \
   F(InternalArrayConstructor, -1, 1) \
+  F(ArrayPush, -1, 1)                \
   F(NormalizeElements, 1, 1)         \
   F(GrowArrayElements, 2, 1)         \
   F(HasComplexElements, 1, 1)        \
@@ -52,7 +53,6 @@ namespace internal {
   F(FixedArraySet, 3, 1)             \
   F(ArraySpeciesConstructor, 1, 1)
 
-
 #define FOR_EACH_INTRINSIC_ATOMICS(F) \
   F(AtomicsCompareExchange, 4, 1)     \
   F(AtomicsLoad, 2, 1)                \