libclang: type safety for CXTranslationUnitImpl::FormatContext


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173589 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/libclang/CIndex.cpp b/tools/libclang/CIndex.cpp
index c4d4a5a..a78b607 100644
--- a/tools/libclang/CIndex.cpp
+++ b/tools/libclang/CIndex.cpp
@@ -2823,7 +2823,7 @@
     disposeCXStringPool(CTUnit->StringPool);
     delete static_cast<CXDiagnosticSetImpl *>(CTUnit->Diagnostics);
     disposeOverridenCXCursorsPool(CTUnit->OverridenCursorsPool);
-    delete static_cast<SimpleFormatContext*>(CTUnit->FormatContext);
+    delete CTUnit->FormatContext;
     delete CTUnit;
   }
 }