[region-isolation] Add a test showing that we do not infer nonisolated(unsafe) onto named closures. #81785
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…d(unsafe) onto named closures. The semantics we want is for nonisolated(unsafe) to be inferred onto anonymous closures. We already have that semantics since we do not look through move_value [var_decl] or begin_borrow [var_decl]. So even though the underlying partial_apply will be viewed as nonisolated(unsafe), we will not consider that when determining the nonisolated(unsafe) for the begin_borrow or move_value that defined the variable whose value is the partial_apply.
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xedin
approved these changes
May 27, 2025
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The semantics we want is for nonisolated(unsafe) to be inferred onto anonymous closures. We already have that semantics since we do not look through move_value [var_decl] or begin_borrow [var_decl]. So even though the underlying partial_apply will be viewed as nonisolated(unsafe), we will not consider that when determining the nonisolated(unsafe) for the begin_borrow or move_value that defined the variable whose value is the partial_apply.