Introduce isLoadedSourceLocation() and isLocalSourceLocation() methods in SourceManager.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140055 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/Basic/SourceManager.h b/include/clang/Basic/SourceManager.h
index 9dc1945..2bd07c6 100644
--- a/include/clang/Basic/SourceManager.h
+++ b/include/clang/Basic/SourceManager.h
@@ -1223,6 +1223,16 @@
   std::pair<int, unsigned>
   AllocateLoadedSLocEntries(unsigned NumSLocEntries, unsigned TotalSize);
 
+  /// \brief Returns true if \arg Loc came from a PCH/Module.
+  bool isLoadedSourceLocation(SourceLocation Loc) const {
+    return Loc.getOffset() >= CurrentLoadedOffset;
+  }
+
+  /// \brief Returns true if \arg Loc did not come from a PCH/Module.
+  bool isLocalSourceLocation(SourceLocation Loc) const {
+    return Loc.getOffset() < NextLocalOffset;
+  }
+
 private:
   const llvm::MemoryBuffer *getFakeBufferForRecovery() const;