Index: clang-move/ClangMove.cpp
===================================================================
--- clang-move/ClangMove.cpp
+++ clang-move/ClangMove.cpp
@@ -131,7 +131,8 @@
                           clang::CharSourceRange FilenameRange,
                           const clang::FileEntry * /*File*/,
                           StringRef SearchPath, StringRef /*RelativePath*/,
-                          const clang::Module * /*Imported*/) override {
+                          const clang::Module * /*Imported*/,
+                          SrcMgr::CharacteristicKind FileType) override {
     if (const auto *FileEntry = SM.getFileEntryForID(SM.getFileID(HashLoc)))
       MoveTool->addIncludes(FileName, IsAngled, SearchPath,
                             FileEntry->getName(), FilenameRange, SM);
Index: clang-tidy/llvm/IncludeOrderCheck.cpp
===================================================================
--- clang-tidy/llvm/IncludeOrderCheck.cpp
+++ clang-tidy/llvm/IncludeOrderCheck.cpp
@@ -28,7 +28,8 @@
                           StringRef FileName, bool IsAngled,
                           CharSourceRange FilenameRange, const FileEntry *File,
                           StringRef SearchPath, StringRef RelativePath,
-                          const Module *Imported) override;
+                          const Module *Imported,
+                          SrcMgr::CharacteristicKind FileType) override;
   void EndOfMainFile() override;
 
 private:
@@ -76,7 +77,8 @@
 void IncludeOrderPPCallbacks::InclusionDirective(
     SourceLocation HashLoc, const Token &IncludeTok, StringRef FileName,
     bool IsAngled, CharSourceRange FilenameRange, const FileEntry *File,
-    StringRef SearchPath, StringRef RelativePath, const Module *Imported) {
+    StringRef SearchPath, StringRef RelativePath, const Module *Imported,
+    SrcMgr::CharacteristicKind FileType) {
   // We recognize the first include as a special main module header and want
   // to leave it in the top position.
   IncludeDirective ID = {HashLoc, FilenameRange, FileName, IsAngled, false};
Index: clang-tidy/modernize/DeprecatedHeadersCheck.cpp
===================================================================
--- clang-tidy/modernize/DeprecatedHeadersCheck.cpp
+++ clang-tidy/modernize/DeprecatedHeadersCheck.cpp
@@ -30,7 +30,8 @@
                           StringRef FileName, bool IsAngled,
                           CharSourceRange FilenameRange, const FileEntry *File,
                           StringRef SearchPath, StringRef RelativePath,
-                          const Module *Imported) override;
+                          const Module *Imported,
+                          SrcMgr::CharacteristicKind FileType) override;
 
 private:
   ClangTidyCheck &Check;
@@ -94,7 +95,8 @@
 void IncludeModernizePPCallbacks::InclusionDirective(
     SourceLocation HashLoc, const Token &IncludeTok, StringRef FileName,
     bool IsAngled, CharSourceRange FilenameRange, const FileEntry *File,
-    StringRef SearchPath, StringRef RelativePath, const Module *Imported) {
+    StringRef SearchPath, StringRef RelativePath, const Module *Imported,
+    SrcMgr::CharacteristicKind FileType) {
   // FIXME: Take care of library symbols from the global namespace.
   //
   // Reasonable options for the check:
Index: clang-tidy/utils/IncludeInserter.cpp
===================================================================
--- clang-tidy/utils/IncludeInserter.cpp
+++ clang-tidy/utils/IncludeInserter.cpp
@@ -25,7 +25,8 @@
                           bool IsAngled, CharSourceRange FileNameRange,
                           const FileEntry * /*IncludedFile*/,
                           StringRef /*SearchPath*/, StringRef /*RelativePath*/,
-                          const Module * /*ImportedModule*/) override {
+                          const Module * /*ImportedModule*/,
+                          SrcMgr::CharacteristicKind FileType) override {
     Inserter->AddInclude(FileNameRef, IsAngled, HashLocation,
                          IncludeToken.getEndLoc());
   }
Index: clangd/ClangdUnit.cpp
===================================================================
--- clangd/ClangdUnit.cpp
+++ clangd/ClangdUnit.cpp
@@ -93,7 +93,8 @@
                           StringRef FileName, bool IsAngled,
                           CharSourceRange FilenameRange, const FileEntry *File,
                           StringRef SearchPath, StringRef RelativePath,
-                          const Module *Imported) override {
+                          const Module *Imported,
+                          SrcMgr::CharacteristicKind FileType) override {
     auto SR = FilenameRange.getAsRange();
     if (SR.isInvalid() || !File || File->tryGetRealPathName().empty())
       return;
Index: clangd/Headers.cpp
===================================================================
--- clangd/Headers.cpp
+++ clangd/Headers.cpp
@@ -34,7 +34,8 @@
                           CharSourceRange /*FilenameRange*/,
                           const FileEntry *File, llvm::StringRef /*SearchPath*/,
                           llvm::StringRef /*RelativePath*/,
-                          const Module * /*Imported*/) override {
+                          const Module * /*Imported*/,
+                          SrcMgr::CharacteristicKind FileType) override {
     WrittenHeaders.insert(
         (IsAngled ? "<" + FileName + ">" : "\"" + FileName + "\"").str());
     if (File != nullptr && !File->tryGetRealPathName().empty())
Index: modularize/CoverageChecker.cpp
===================================================================
--- modularize/CoverageChecker.cpp
+++ modularize/CoverageChecker.cpp
@@ -90,7 +90,8 @@
                           StringRef FileName, bool IsAngled,
                           CharSourceRange FilenameRange, const FileEntry *File,
                           StringRef SearchPath, StringRef RelativePath,
-                          const Module *Imported) override {
+                          const Module *Imported,
+                          SrcMgr::CharacteristicKind FileType) override {
     Checker.collectUmbrellaHeaderHeader(File->getName());
   }
 
Index: modularize/PreprocessorTracker.cpp
===================================================================
--- modularize/PreprocessorTracker.cpp
+++ modularize/PreprocessorTracker.cpp
@@ -750,7 +750,8 @@
                           const clang::FileEntry *File,
                           llvm::StringRef SearchPath,
                           llvm::StringRef RelativePath,
-                          const clang::Module *Imported) override;
+                          const clang::Module *Imported,
+                          SrcMgr::CharacteristicKind FileType) override;
   void FileChanged(clang::SourceLocation Loc,
                    clang::PPCallbacks::FileChangeReason Reason,
                    clang::SrcMgr::CharacteristicKind FileType,
@@ -1289,7 +1290,7 @@
     llvm::StringRef FileName, bool IsAngled,
     clang::CharSourceRange FilenameRange, const clang::FileEntry *File,
     llvm::StringRef SearchPath, llvm::StringRef RelativePath,
-    const clang::Module *Imported) {
+    const clang::Module *Imported, SrcMgr::CharacteristicKind FileType) {
   int DirectiveLine, DirectiveColumn;
   std::string HeaderPath = getSourceLocationFile(PP, HashLoc);
   getSourceLocationLineAndColumn(PP, HashLoc, DirectiveLine, DirectiveColumn);
Index: pp-trace/PPCallbacksTracker.h
===================================================================
--- pp-trace/PPCallbacksTracker.h
+++ pp-trace/PPCallbacksTracker.h
@@ -102,7 +102,8 @@
                           const clang::FileEntry *File,
                           llvm::StringRef SearchPath,
                           llvm::StringRef RelativePath,
-                          const clang::Module *Imported) override;
+                          const clang::Module *Imported,
+                          SrcMgr::CharacteristicKind FileType) override;
   void moduleImport(clang::SourceLocation ImportLoc, clang::ModuleIdPath Path,
                     const clang::Module *Imported) override;
   void EndOfMainFile() override;
Index: pp-trace/PPCallbacksTracker.cpp
===================================================================
--- pp-trace/PPCallbacksTracker.cpp
+++ pp-trace/PPCallbacksTracker.cpp
@@ -139,7 +139,7 @@
     llvm::StringRef FileName, bool IsAngled,
     clang::CharSourceRange FilenameRange, const clang::FileEntry *File,
     llvm::StringRef SearchPath, llvm::StringRef RelativePath,
-    const clang::Module *Imported) {
+    const clang::Module *Imported, SrcMgr::CharacteristicKind FileType) {
   beginCallback("InclusionDirective");
   appendArgument("IncludeTok", IncludeTok);
   appendFilePathArgument("FileName", FileName);
@@ -149,6 +149,7 @@
   appendFilePathArgument("SearchPath", SearchPath);
   appendFilePathArgument("RelativePath", RelativePath);
   appendArgument("Imported", Imported);
+  appendArgument("FileType", FileType);
 }
 
 // Callback invoked whenever there was an explicit module-import