Fix a typo in head comment of CurPPLexer

[zhouyizhou]

Summary

In head comment of CurPPLexer field of class Preprocessor,
'The current top of the stack what we're lexing from' should be
'The current top of the stack that we're lexing from'

Signed-off-by: Zhouyi Zhou <[e-mail]>

[vsapsai]

Thanks for the fix! Don't see any other places in the file to fix.

clang/include/clang/Lex/Preprocessor.h

726

This already uses "that".

[zhouyizhou]

In D149709#4314390, @vsapsai wrote:

Thanks for the fix! Don't see any other places in the file to fix.

Thanks for review my patch ;-)
I have no write access to LLVM project, can you commit it for me ?

Thanks in Advance ;-)
Zhouyi Zhou <[e-mail]>

clang/include/clang/Lex/Preprocessor.h

public:
 
     std::optional<PreambleSkipInfo> SkipInfo;
 
   private:
     SmallVector<PPConditionalInfo, 4> ConditionalStack;
     State ConditionalStackState = Off;
   } PreambleConditionalStack;
 
   /// The current top of the stack that we're lexing from if
   /// not expanding a macro and we are lexing directly from source code.
   ///
   /// Only one of CurLexer, or CurTokenLexer will be non-null.
   std::unique_ptr<Lexer> CurLexer;
 
-  /// The current top of the stack what we're lexing from
+  /// The current top of the stack that we're lexing from
   /// if not expanding a macro.
   ///
   /// This is an alias for CurLexer.
   PreprocessorLexer *CurPPLexer = nullptr;
 
   /// Used to find the current FileEntry, if CurLexer is non-null
   /// and if applicable.
   ///