Add clang_isPODType() for querying if the CXType is POD.  Implements <rdar://problem/8250669>.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@109822 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/libclang/libclang.darwin.exports b/tools/libclang/libclang.darwin.exports
index e51620c..50ed994 100644
--- a/tools/libclang/libclang.darwin.exports
+++ b/tools/libclang/libclang.darwin.exports
@@ -82,6 +82,7 @@
 _clang_isExpression
 _clang_isInvalid
 _clang_isPreprocessing
+_clang_isPODType
 _clang_isReference
 _clang_isStatement
 _clang_isTranslationUnit