[cxx-interop] Adjust the test for default construction of C types #84806
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`pthread_mutexattr_t` should be getting its implicit default constructor instantiated by Clang. Due to a Clang bug, the constructor was being instantiated, `needsImplicitDefaultConstructor` was being set to `false`, but the constructor wasn't being added to `decl->members()`. This prevented Swift from correctly importing the constructor. This relies on John's change: llvm/llvm-project#161933. rdar://161999293
egorzhdan
requested review from
Xazax-hun,
fahadnayyar,
hnrklssn,
j-hui,
susmonteiro and
zoecarver
as code owners
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@swift-ci please smoke test |
This was referenced Oct 10, 2025
Xazax-hun
approved these changes
Oct 10, 2025
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pthread_mutexattr_tshould be getting its implicit default constructor instantiated by Clang. Due to a Clang bug, the constructor was being instantiated,needsImplicitDefaultConstructorwas being set tofalse, but the constructor wasn't being added todecl->members(). This prevented Swift from correctly importing the constructor.This relies on John's change: llvm/llvm-project#161933.
rdar://161999293