Fix Casting

Use const_cast<> to avoid a cast-away-const error.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172562 91177308-0d34-0410-b5e6-96231b3b80d8

tools/libclang/CIndexInclusionStack.cpp

@@ -64,7 +64,8 @@ void clang_getInclusions(CXTranslationUnit TU, CXInclusionVisitor CB,
             
     // Callback to the client.
     // FIXME: We should have a function to construct CXFiles.
-    CB((CXFile) FI.getContentCache()->OrigEntry, 
+    CB(static_cast<CXFile>(
+         const_cast<FileEntry *>(FI.getContentCache()->OrigEntry)), 
        InclusionStack.data(), InclusionStack.size(), clientData);
   }    
 }