Lifetime inference: implicit subscript getter depenency + implicit _modify #83690
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Allow a subscript getter to return a non-Escapable type without an explicit
'@'lifetime annotation.
subscript(_ index: Int) -> Span {
get {} // OK
}
Fixes rdar://155976839 (Compiler crash when _modify is not specified for ~Escapable type)
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Lifetime inference: give subscripts an implicit dependency on 'self'
Allow a subscript getter to return a non-Escapable type without an explicit
'@'lifetime annotation.
Lifetime inference: fix a crash on implicit _modify for subscripts.
Fixes rdar://155976839 (Compiler crash when _modify is not specified for
~Escapable type)
Lifetime test: implicit subscript getter depenency, implicit _modify