use getBuffer() to fix compile error.  Ted, please review.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@61786 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/Driver/CacheTokens.cpp b/Driver/CacheTokens.cpp
index 180dbcc..b12a59f 100644
--- a/Driver/CacheTokens.cpp
+++ b/Driver/CacheTokens.cpp
@@ -347,7 +347,7 @@
     PCHMap::iterator PI = PM.find(FE); // Have we already processed this file?
     if (PI != PM.end()) continue;
     
-    const llvm::MemoryBuffer* B = C->Buffer;    
+    const llvm::MemoryBuffer* B = C->getBuffer();
     if (!B) continue;
     
     Lexer L(SourceLocation::getFileLoc(I.getFileID(), 0), LOpts,