Constify.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@303250 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/include/clang/Basic/SourceManager.h b/include/clang/Basic/SourceManager.h
index c8fe2ab90c292c1fea43220901eaab8719544922..6960ea690b91c197fc24506524dd7bbf4b553222 100644 (file)
--- a/include/clang/Basic/SourceManager.h
+++ b/include/clang/Basic/SourceManager.h
@@ -865,7 +865,7 @@ public:
                             const FileEntry *NewFile);
 
   /// \brief Returns true if the file contents have been overridden.
-  bool isFileOverridden(const FileEntry *File) {
+  bool isFileOverridden(const FileEntry *File) const {
     if (OverriddenFilesInfo) {
       if (OverriddenFilesInfo->OverriddenFilesWithBuffer.count(File))
         return true;