For the FileChanged Preprocessor callback, when exiting a file, pass its FileID.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141681 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Frontend/HeaderIncludeGen.cpp b/lib/Frontend/HeaderIncludeGen.cpp
index 283239d..3b41d89 100644
--- a/lib/Frontend/HeaderIncludeGen.cpp
+++ b/lib/Frontend/HeaderIncludeGen.cpp
@@ -39,7 +39,8 @@
   }
 
   virtual void FileChanged(SourceLocation Loc, FileChangeReason Reason,
-                           SrcMgr::CharacteristicKind FileType);
+                           SrcMgr::CharacteristicKind FileType,
+                           FileID PrevFID);
 };
 }
 
@@ -72,7 +73,8 @@
 
 void HeaderIncludesCallback::FileChanged(SourceLocation Loc,
                                          FileChangeReason Reason,
-                                       SrcMgr::CharacteristicKind NewFileType) {
+                                       SrcMgr::CharacteristicKind NewFileType,
+                                       FileID PrevFID) {
   // Unless we are exiting a #include, make sure to skip ahead to the line the
   // #include directive was at.
   PresumedLoc UserLoc = SM.getPresumedLoc(Loc);