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be73bd552e
The lifetime of yielded values always end at the end_apply. This is required because a yielded address is non-aliasing inside the begin/end_apply scope, but might be aliasing after the end_apply. For example, if the callee yields an `ref_element_addr` (which is encapsulated in a begin/end_access). Therefore, even if the callee does not write anything, the effects must be "read" and "write". Fixes a SIL verifier error rdar://147601749