Disable funcref generation for fuzz tests with inputs #4797
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Don't merge until we're ready to invalidate all of our currently-open
cranelift-fuzzgen
fuzz-bugs.Per @afonso360's suggestion on #4758, this makes
cranelift-fuzzgen
stop generating references to functions which don't exist. It also disables generating libcalls, which weren't that big of a problem, but it's fine to just not test them until we have those bits in better shape.This fixes #4757, fixes #4758, and fixes new fuzzbugs that are probably coming after we merged #4667.