[arcmt] Move the remapping functions to clang-c/Index.h and change 'arcmt_' prefix to 'clang_'.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@134916 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/libclang/libclang.exports b/tools/libclang/libclang.exports
index ac6fc34..47b7030 100644
--- a/tools/libclang/libclang.exports
+++ b/tools/libclang/libclang.exports
@@ -137,8 +137,7 @@
 clang_tokenize
 clang_visitChildren
 clang_visitChildrenWithBlock
-arcmt_getRemappings
-arcmt_remap_getNumFiles
-arcmt_remap_getOriginalFile
-arcmt_remap_getTransformedFile
-arcmt_remap_dispose
+clang_getRemappings
+clang_remap_getNumFiles
+clang_remap_getFilenames
+clang_remap_dispose