Index: clang-tidy/bugprone/SuspiciousSemicolonCheck.cpp
===================================================================
--- clang-tidy/bugprone/SuspiciousSemicolonCheck.cpp
+++ clang-tidy/bugprone/SuspiciousSemicolonCheck.cpp
@@ -53,7 +53,7 @@
 
   SourceLocation LocEnd = Semicolon->getEndLoc();
   FileID FID = SM.getFileID(LocEnd);
-  llvm::MemoryBuffer *Buffer = SM.getBuffer(FID, LocEnd);
+  const llvm::MemoryBuffer *Buffer = SM.getBuffer(FID, LocEnd);
   Lexer Lexer(SM.getLocForStartOfFile(FID), Ctxt.getLangOpts(),
               Buffer->getBufferStart(), SM.getCharacterData(LocEnd) + 1,
               Buffer->getBufferEnd());
Index: clang-tidy/misc/StaticAssertCheck.cpp
===================================================================
--- clang-tidy/misc/StaticAssertCheck.cpp
+++ clang-tidy/misc/StaticAssertCheck.cpp
@@ -145,7 +145,7 @@
   const LangOptions &Opts = ASTCtx->getLangOpts();
   const SourceManager &SM = ASTCtx->getSourceManager();
 
-  llvm::MemoryBuffer *Buffer = SM.getBuffer(SM.getFileID(AssertLoc));
+  const llvm::MemoryBuffer *Buffer = SM.getBuffer(SM.getFileID(AssertLoc));
   if (!Buffer)
     return SourceLocation();