swift

ed11fd4e - ASTPrinter: Fix generic signatures with requirements on outer parameters

ASTPrinter: Fix generic signatures with requirements on outer parameters We incorrectly assumed that a requirement 'rooted' in an outer parameter must be necessarily defined as part of the outer context's signature, and thus we were skipping it when printing the 'where' clause of a nested declaration or an extension of a nested type. Instead, actually get the outer generic signature and filter requirements that the outer signature satisfies. Fixes <rdar://problem/53769896>, <https://bugs.swift.org/browse/SR-11221>.