libclang: type safety for CXTranslationUnitImpl::CIdx


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173590 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/libclang/CIndex.cpp b/tools/libclang/CIndex.cpp
index a78b607..949db52 100644
--- a/tools/libclang/CIndex.cpp
+++ b/tools/libclang/CIndex.cpp
@@ -2758,7 +2758,7 @@
   SaveTranslationUnitInfo *STUI =
     static_cast<SaveTranslationUnitInfo*>(UserData);
 
-  CIndexer *CXXIdx = (CIndexer*)STUI->TU->CIdx;
+  CIndexer *CXXIdx = STUI->TU->CIdx;
   if (CXXIdx->isOptEnabled(CXGlobalOpt_ThreadBackgroundPriorityForIndexing))
     setThreadBackgroundPriority();
 
@@ -2857,7 +2857,7 @@
   (void) options;
   RTUI->result = 1;
 
-  CIndexer *CXXIdx = (CIndexer*)TU->CIdx;
+  CIndexer *CXXIdx = TU->CIdx;
   if (CXXIdx->isOptEnabled(CXGlobalOpt_ThreadBackgroundPriorityForEditing))
     setThreadBackgroundPriority();
 
@@ -5475,7 +5475,7 @@
   const unsigned NumTokens = ((clang_annotateTokens_Data*)UserData)->NumTokens;
   CXCursor *Cursors = ((clang_annotateTokens_Data*)UserData)->Cursors;
 
-  CIndexer *CXXIdx = (CIndexer*)TU->CIdx;
+  CIndexer *CXXIdx = TU->CIdx;
   if (CXXIdx->isOptEnabled(CXGlobalOpt_ThreadBackgroundPriorityForEditing))
     setThreadBackgroundPriority();