diff --git a/clang/unittests/Lex/PPCallbacksTest.cpp b/clang/unittests/Lex/PPCallbacksTest.cpp
index 67b56a6..4f52871 100644
--- a/clang/unittests/Lex/PPCallbacksTest.cpp
+++ b/clang/unittests/Lex/PPCallbacksTest.cpp
@@ -39,16 +39,18 @@
                           StringRef FileName, bool IsAngled,
                           CharSourceRange FilenameRange, const FileEntry *File,
                           StringRef SearchPath, StringRef RelativePath,
-                          const Module *Imported) override {
-      this->HashLoc = HashLoc;
-      this->IncludeTok = IncludeTok;
-      this->FileName = FileName.str();
-      this->IsAngled = IsAngled;
-      this->FilenameRange = FilenameRange;
-      this->File = File;
-      this->SearchPath = SearchPath.str();
-      this->RelativePath = RelativePath.str();
-      this->Imported = Imported;
+                          const Module *Imported,
+                          SrcMgr::CharacteristicKind FileType) override {
+    this->HashLoc = HashLoc;
+    this->IncludeTok = IncludeTok;
+    this->FileName = FileName.str();
+    this->IsAngled = IsAngled;
+    this->FilenameRange = FilenameRange;
+    this->File = File;
+    this->SearchPath = SearchPath.str();
+    this->RelativePath = RelativePath.str();
+    this->Imported = Imported;
+    this->FileType = FileType;
   }
 
   SourceLocation HashLoc;
@@ -60,6 +62,7 @@
   SmallString<16> SearchPath;
   SmallString<16> RelativePath;
   const Module* Imported;
+  SrcMgr::CharacteristicKind FileType;
 };
 
 // Stub to collect data from PragmaOpenCLExtension callbacks.
@@ -138,6 +141,13 @@
   // the InclusionDirective callback.
   CharSourceRange InclusionDirectiveFilenameRange(const char* SourceText, 
       const char* HeaderPath, bool SystemHeader) {
+    return InclusionDirectiveCallback(SourceText, HeaderPath, SystemHeader)
+        ->FilenameRange;
+  }
+
+  InclusionDirectiveCallbacks *
+  InclusionDirectiveCallback(const char *SourceText, const char *HeaderPath,
+                             bool SystemHeader) {
     std::unique_ptr<llvm::MemoryBuffer> Buf =
         llvm::MemoryBuffer::getMemBuffer(SourceText);
     SourceMgr.setMainFileID(SourceMgr.createFileID(std::move(Buf)));
@@ -168,7 +178,7 @@
     }
 
     // Callbacks have been executed at this point -- return filename range.
-    return Callbacks->FilenameRange;
+    return Callbacks;
   }
 
   PragmaOpenCLExtensionCallbacks::CallbackParameters 
@@ -222,6 +232,15 @@
   }
 };
 
+TEST_F(PPCallbacksTest, UserFileCharacteristics) {
+  const char *Source = "#include \"quoted.h\"\n";
+
+  SrcMgr::CharacteristicKind Kind =
+      InclusionDirectiveCallback(Source, "/quoted.h", false)->FileType;
+
+  ASSERT_EQ(SrcMgr::CharacteristicKind::C_User, Kind);
+}
+
 TEST_F(PPCallbacksTest, QuotedFilename) {
   const char* Source =
     "#include \"quoted.h\"\n";