AllocateConsString  246 src/factory.cc                      isolate()->heap()->AllocateConsString(*first, *second),
AllocateConsString  936 src/heap.h       MUST_USE_RESULT MaybeObject* AllocateConsString(String* first,
AllocateConsString 6851 src/runtime.cc   return isolate->heap()->AllocateConsString(str1, str2);