Rollup merge of #142597 - folkertdev:abi-cannot-be-called, r=workingjubilee

error on calls to ABIs that cannot be called

We recently added `extern "custom"`, which cannot be called using a rust call expression. But there are more ABIs that can't be called in that way, because the call does not semantically make sense.

More details are in rust-lang/rust#140566 (comment)

r? `@workingjubilee`

try-job: x86_64-gnu-llvm-19-3

Author: matthiaskrgr