[5.0] [IDE] Teach type checker about conditional conformance extensions. #14633
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No point in getting rid of the sugar so early.
Before conditional conformances, the archetypes in conformance extensions (i.e. extension Foo: SomeProtocol) were equivalent to those in the type decl, with the same protocol bounds and so on. The code for printing "synthesized" members relied on this fact. This commit teaches that code to deal with archetypes in the conditional conformance extension when required. Fixes rdar://problem/36553066 and SR-6930.
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Before conditional conformances, the archetypes in conformance
extensions (i.e. extension Foo: SomeProtocol) were equivalent to those
in the type decl, with the same protocol bounds and so on. The code for
printing "synthesized" members relied on this fact. This commit teaches
that code to deal with archetypes in the conditional conformance
extension when required.
Fixes rdar://problem/36553066 and SR-6930.