[compiler] Allow global mutation effects in arguments passed to hooks and in return values #30576
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Stack from ghstack (oldest at bottom):
In investigating the results of #30572 we discovered a lot of false positives from when functions containing possibly-effectful calls were returned from hooks or passed into hooks. This corresponds to similar issues for GlobalMutations, because the effectful call work uses the same FunctionEffect infra. This fixes the infra to allow GlobalMutation function effects in return and throw terminals and in all hook arguments.