[6.2] Sema: Fix a regression in retroactive conformance diagnostic suppression#85159

tshortli merged 1 commit intoswiftlang:release/6.2swiftlang/swift:release/6.2from

tshortli:suppress-inherited-retroactive-conformance-diags-with-module-qualification-6.2tshortli/swift:suppress-inherited-retroactive-conformance-diags-with-module-qualification-6.2Copy head branch name to clipboard