[SE-0258] Implement basic support for property wrapper composition. #25449
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When multiple property wrapper attributes are provided on a declaration, compose them outside-in to form a composite property wrapper type. For example, @A @b @C var foo = 17 will produce var $foo = A(initialValue: B(initialValue: C(initialValue: 17))) and foo's getter/setter will access "foo.value.value.value".
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When multiple property wrapper attributes are provided on a declaration,
compose them outside-in to form a composite property wrapper type. For
example,
will produce
and foo's getter/setter will access
foo.value.value.value.