Reland "[tools] Updating PPCallbacks::InclusionDirective calls"

This commit relands r331905.

r331904 added SrcMgr::CharacteristicKind to the InclusionDirective
callback, this revision updates instances of it in clang-tools-extra.

llvm-svn: 332023
diff --git a/clang-tools-extra/clangd/ClangdUnit.cpp b/clang-tools-extra/clangd/ClangdUnit.cpp
index c750f57..fd8f1ec 100644
--- a/clang-tools-extra/clangd/ClangdUnit.cpp
+++ b/clang-tools-extra/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;