604     String* flat_string, String* cons_string) {  in VerifyCharacterStream()  argument
606   CHECK(flat_string->IsFlat() && !flat_string->IsConsString());  in VerifyCharacterStream()
609   int length = flat_string->length();  in VerifyCharacterStream()
617     StringCharacterStream flat_stream(flat_string, offset);  in VerifyCharacterStream()
620       uint16_t c = flat_string->Get(i);  in VerifyCharacterStream()
655     Handle<String> flat_string = build(i, &data);  in TestStringCharacterStream()  local
657     AccumulateStats(flat_string, &flat_string_stats);  in TestStringCharacterStream()
659     String::Flatten(flat_string);  in TestStringCharacterStream()
671         flat_string->IsConsString() ?  in TestStringCharacterStream()
672         ConsString::cast(*flat_string)->first() :  in TestStringCharacterStream()
673         *flat_string;  in TestStringCharacterStream()
865   Handle<String> flat_string =  in TEST()  local
867   String::Flatten(flat_string);  in TEST()
870     TraverseFirst(flat_string, string, kDeepOneByteDepth);  in TEST()