Add a #[spirv(...)] attribute checking pass and remove #[allow(unused_attributes)].
#461
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By hooking the
check_mod_attrsquery, we can effectively expandrustc_passes::check_attrto also check#[spirv(...)]attributes, which is an improvement over only validating attributes when they happen to be relevant.In particular, this means that now we shouldn't have any latent "we allowed some attribute on an obviously wrong thing" bugs.
It also allows us to mark the attributes as used, and therefore remove the need for
#[allow(unused_attributes)]altogether.Fixes #386 (specifically as suggested in #386 (comment)), to get
spirv_std::storage_class::Imageto compile again.cc @XAMPPRocky It would be nice to get this in the next release, but I understand if we want to wait.