[clang] [clang] ast-dump: dump `AvailabilityAttr` fields to JSON (PR #179281)

[via cfe-commits]

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@@ -21,6 +21,9 @@ __attribute__ ((visibility ("hidden"))) int visibility_var;
 
 __thread __attribute__ ((tls_model ("local-exec"))) int tls_model_var;
 
+__attribute__((availability(macos, strict, introduced=10.15, deprecated=12.0, obsoleted=13.0, replacement="new_func"))) int availability_var_all;
+__attribute__((availability(macos, unavailable, message="use new API"))) int availability_var_unavailable;
+
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serge-sans-paille wrote:

See 3cfe9d5c22e7b47384c17b6950cf120f109366b3 for examples of situation where `priority` appears.

https://github.com/llvm/llvm-project/pull/179281