[libclang] When pointing at a macro expansion inside a macro argument,
return a cursor for the inner macro.

llvm-svn: 140207
diff --git a/clang/test/Index/getcursor-pp-pch.c.h b/clang/test/Index/getcursor-pp-pch.c.h
index 184dd8b..c24a39c 100644
--- a/clang/test/Index/getcursor-pp-pch.c.h
+++ b/clang/test/Index/getcursor-pp-pch.c.h
@@ -2,3 +2,4 @@
 #define DECORATION
 
 DECORATION
+OBSCURE(DECORATION)