[NFC][RemoteInspection] Use existing cache to build conformance table #85929
+21
−13
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• Explanation: There is an existing cache which is built when looking up FieldDescriptors. collectAllConformances ignores this cache and parses every FieldDescriptor again. Use the existing cache mechanism.
• Scope: This affects RemoteMirrors clients that use it to parse protocols conformances. As far as I know LLDB is the only client.
• Risk: Low, this only affects LLDB.
• Problem: rdar://166098516
• Original PR: #85916
• Reviewed by: @mikeash