libclang: add a function to check whether a member function is pure virtual

Patch by Seth Fowler.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@182139 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang-c/Index.h b/include/clang-c/Index.h
index d8c37eb..21b7dba 100644
--- a/include/clang-c/Index.h
+++ b/include/clang-c/Index.h
@@ -4035,6 +4035,12 @@
  */
 
 /**
+ * \brief Determine if a C++ member function or member function template is
+ * pure virtual.
+ */
+CINDEX_LINKAGE unsigned clang_CXXMethod_isPureVirtual(CXCursor C);
+
+/**
  * \brief Determine if a C++ member function or member function template is 
  * declared 'static'.
  */