[libclang] Introduce clang_Cursor_isNull and clang_Cursor_getTranslationUnit functions.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@140587 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/libclang/CXCursor.cpp b/tools/libclang/CXCursor.cpp
index eb54ed2..c0e0384 100644
--- a/tools/libclang/CXCursor.cpp
+++ b/tools/libclang/CXCursor.cpp
@@ -519,6 +519,14 @@
 }
 
 //===----------------------------------------------------------------------===//
+// libclang CXCursor APIs
+//===----------------------------------------------------------------------===//
+
+CXTranslationUnit clang_Cursor_getTranslationUnit(CXCursor cursor) {
+  return getCursorTU(cursor);
+}
+
+//===----------------------------------------------------------------------===//
 // CXCursorSet.
 //===----------------------------------------------------------------------===//