Slava Pestov 6615e16bfa AST: Skip stub initializers when printing module interfaces ...

When a derived class does not inherit a designated initializer from
its base class, we override the designated initializer's vtable
entry with a stub which traps with a fatal error.

The stub cannot be called and clients do not need to be aware of
its existence, so don't print it at all in the module interface.

Fixes rdar://problem/71122015 / https://bugs.swift.org/browse/SR-13832.

2021-03-05 23:53:57 -05:00

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