1501                                       bool IsStart, bool &IsExtension) {  in isMathematicalExtensionID()  argument
1508     IsExtension = true;  in isMathematicalExtensionID()
1515                             bool &IsExtension) {  in isAllowedIDChar()  argument
1530                                      IsExtension);  in isAllowedIDChar()
1543                                      bool &IsExtension) {  in isAllowedInitiallyIDChar()  argument
1545   IsExtension = false;  in isAllowedInitiallyIDChar()
1554                                      IsExtension);  in isAllowedInitiallyIDChar()
1556   if (!isAllowedIDChar(C, LangOpts, IsExtension))  in isAllowedInitiallyIDChar()
1700   bool IsExtension;  in diagnoseInvalidUnicodeCodepointInIdentifier()  local
1701   bool IsIDStart = isAllowedInitiallyIDChar(CodePoint, LangOpts, IsExtension);  in diagnoseInvalidUnicodeCodepointInIdentifier()
1703       IsIDStart || isAllowedIDChar(CodePoint, LangOpts, IsExtension);  in diagnoseInvalidUnicodeCodepointInIdentifier()
1728   bool IsExtension = false;  in tryConsumeIdentifierUCN()  local
1729   if (!isAllowedIDChar(CodePoint, LangOpts, IsExtension)) {  in tryConsumeIdentifierUCN()
1743     if (IsExtension)  in tryConsumeIdentifierUCN()
1779   bool IsExtension = false;  in tryConsumeIdentifierUTF8Char()  local
1781                        IsExtension)) {  in tryConsumeIdentifierUTF8Char()
1794     if (IsExtension)  in tryConsumeIdentifierUTF8Char()
1815   bool IsExtension = false;  in LexUnicodeIdentifierStart()  local
1816   if (isAllowedInitiallyIDChar(C, LangOpts, IsExtension)) {  in LexUnicodeIdentifierStart()
1819       if (IsExtension)  in LexUnicodeIdentifierStart()