[libclang] Introduce cxcursor::getCursorParentDecl(CXCursor Cursor) and use it at the appropriate place in CIndex.cpp
No functionality change.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134104 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/libclang/CXCursor.cpp b/tools/libclang/CXCursor.cpp
index f2ee2a9..b9842b6 100644
--- a/tools/libclang/CXCursor.cpp
+++ b/tools/libclang/CXCursor.cpp
@@ -484,6 +484,10 @@
   return (Attr *)Cursor.data[1];
 }
 
+Decl *cxcursor::getCursorParentDecl(CXCursor Cursor) {
+  return (Decl *)Cursor.data[0];
+}
+
 ASTContext &cxcursor::getCursorContext(CXCursor Cursor) {
   return getCursorASTUnit(Cursor)->getASTContext();
 }