Introduce a new libclang API to determine the platform availability of
a given entity, so that we can tell when the entity was
introduced/deprecated/obsoleted on each platform for which we have an
annotation. Addresses <rdar://problem/11365715>.

llvm-svn: 156347
diff --git a/clang/test/Index/availability.c b/clang/test/Index/availability.c
new file mode 100644
index 0000000..ddbeb3a
--- /dev/null
+++ b/clang/test/Index/availability.c
@@ -0,0 +1,6 @@
+// Run lines below; this test is line- and column-sensitive.
+
+void foo(void) __attribute__((availability(macosx,introduced=10.4,deprecated=10.5,obsoleted=10.7), availability(ios,introduced=3.2,deprecated=4.1)));
+
+// RUN: c-index-test -test-load-source all %s | FileCheck %s
+// CHECK: (ios, introduced=3.2, deprecated=4.1)  (macosx, introduced=10.4, deprecated=10.5, obsoleted=10.7)