[libclang] Slight changes to the indexing API and bigger internal changes for it.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@144577 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/libclang/libclang.exports b/tools/libclang/libclang.exports
index 4596336..93cfb47 100644
--- a/tools/libclang/libclang.exports
+++ b/tools/libclang/libclang.exports
@@ -138,7 +138,7 @@
 clang_index_getObjCCategoryDeclInfo
 clang_index_getObjCContainerDeclInfo
 clang_index_getObjCInterfaceDeclInfo
-clang_index_getObjCProtocolDeclInfo
+clang_index_getObjCProtocolRefListInfo
 clang_index_isEntityObjCContainerKind
 clang_indexLoc_getCXSourceLocation
 clang_indexLoc_getFileLocation