[Runtime] Use the Swift calling convention for swift_getAssociatedTypeWitness #20394
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…eWitness. Runtime functions need to use the Swift calling convention for any function returning MetadataResponse, so that we get the two values returned in separate registers. Fixes rdar://problem/45042971 and rdar://problem/45851050.
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aschwaighofer
approved these changes
Nov 7, 2018
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Runtime functions need to use the Swift calling convention for any function
returning MetadataResponse, so that we get the two values returned in separate
registers.
Fixes rdar://problem/45042971 and rdar://problem/45851050.