versioner: replace availability attributes with annotate.

Major refactor to use __attribute__((annotate)) to be able to keep
track of the semantic differences between __INTRODUCED_IN(x) and
__INTRODUCED_IN_X86(x), for use in the upcoming preprocessor.

Bug: http://b/30170081
Change-Id: I6496a8c40ba7f4553de9a2be0bbddcf37c813937
diff --git a/tools/versioner/tests/obsoleted/headers/foo.h b/tools/versioner/tests/obsoleted/headers/foo.h
index c190629..68f3d43 100644
--- a/tools/versioner/tests/obsoleted/headers/foo.h
+++ b/tools/versioner/tests/obsoleted/headers/foo.h
@@ -1 +1 @@
-int foo() __attribute__((availability(android, introduced = 9, obsoleted = 11)));
+int foo() __INTRODUCED_IN(9) __REMOVED_IN(11);
\ No newline at end of file