StackSlotIndex    618 src/accessors.cc         int index = scope_info->StackSlotIndex(
StackSlotIndex   3471 src/objects.h    int StackSlotIndex(String* name);
StackSlotIndex   12066 src/runtime.cc     index = scope_info->StackSlotIndex(isolate->heap()->arguments_symbol());
StackSlotIndex    408 src/scopes.cc    ASSERT(scope_info_->StackSlotIndex(*name) < 0);