858     LambdaIntroducerTentativeParse Tentative;  in TryParseLambdaExpression()  local
859     if (ParseLambdaIntroducer(Intro, &Tentative)) {  in TryParseLambdaExpression()
864     switch (Tentative) {  in TryParseLambdaExpression()
899                                    LambdaIntroducerTentativeParse *Tentative) {  in ParseLambdaIntroducer()  argument
900   if (Tentative)  in ParseLambdaIntroducer()
901     *Tentative = LambdaIntroducerTentativeParse::Success;  in ParseLambdaIntroducer()
914     if (Tentative) {  in ParseLambdaIntroducer()
915       *Tentative = LambdaIntroducerTentativeParse::Invalid;  in ParseLambdaIntroducer()
925     if (Tentative)  in ParseLambdaIntroducer()
926       *Tentative = LambdaIntroducerTentativeParse::Incomplete;  in ParseLambdaIntroducer()
940       Tentative = nullptr;  in ParseLambdaIntroducer()
946     Tentative = nullptr;  in ParseLambdaIntroducer()
957             !(getLangOpts().ObjC && Tentative)) {  in ParseLambdaIntroducer()
976       if (getLangOpts().ObjC && Tentative && First)  in ParseLambdaIntroducer()
1059         if (Tentative) {  in ParseLambdaIntroducer()
1061           *Tentative = LambdaIntroducerTentativeParse::Incomplete;  in ParseLambdaIntroducer()
1083         if (!Tentative) {  in ParseLambdaIntroducer()
1089           *Tentative = LambdaIntroducerTentativeParse::Incomplete;  in ParseLambdaIntroducer()
1138     if (Tentative && Tok.is(tok::identifier) &&  in ParseLambdaIntroducer()
1141       *Tentative = LambdaIntroducerTentativeParse::MessageSend;  in ParseLambdaIntroducer()