[index] Fix infinite loop while looking at superclasses #23674
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While checking for superclasses in isUnitTest, we need to handle circular inheritance. For good measure, add tests for protocols as well. The new API is designed to behave the same as walkInheritedProtocols except that is walks over superclasses. rdar://49434989
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@swift-ci please smoke test |
akyrtzi
approved these changes
Mar 29, 2019
This was referenced Mar 30, 2019
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While checking for superclasses in isUnitTest, we need to handle
circular inheritance. For good measure, add tests for protocols as well.
The new API is designed to behave the same as walkInheritedProtocols
except that is walks over superclasses.
https://bugs.swift.org/browse/SR-10236
rdar://49434989