[swiftc] Add test case for crash triggered in swift::Type::transform(…) #2115
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…llvm::function_ref<swift::Type (swift::Type)>) const Stack trace: ``` swift: /path/to/swift/include/swift/AST/Decl.h:2447: swift::Type swift::TypeAliasDecl::getUnderlyingType() const: Assertion `!UnderlyingTy.getType().isNull() && "getting invalid underlying type"' failed. 8 swift 0x00000000010e5c8f swift::Type::transform(llvm::function_ref<swift::Type (swift::Type)>) const + 6879 9 swift 0x00000000010de214 swift::Type::subst(swift::ModuleDecl*, llvm::DenseMap<swift::TypeBase*, swift::Type, llvm::DenseMapInfo<swift::TypeBase*>, llvm::detail::DenseMapPair<swift::TypeBase*, swift::Type> >&, swift::OptionSet<swift::SubstFlags, unsigned int>) const + 68 10 swift 0x0000000000fb51b7 swift::ArchetypeBuilder::mapTypeOutOfContext(swift::ModuleDecl*, swift::GenericParamList*, swift::Type) + 183 16 swift 0x0000000000e8ca96 swift::TypeChecker::typeCheckDecl(swift::Decl*, bool) + 150 17 swift 0x0000000000eaf832 swift::performTypeChecking(swift::SourceFile&, swift::TopLevelContext&, swift::OptionSet<swift::TypeCheckingFlags, unsigned int>, unsigned int) + 994 18 swift 0x0000000000ce18ff swift::CompilerInstance::performSema() + 3295 20 swift 0x000000000079296b frontend_main(llvm::ArrayRef<char const*>, char const*, void*) + 2523 21 swift 0x000000000078d5b5 main + 2837 Stack dump: 0. Program arguments: /path/to/swift/bin/swift -frontend -c -primary-file validation-test/compiler_crashers/28287-swift-type-transform.swift -target x86_64-unknown-linux-gnu -disable-objc-interop -module-name main -o /tmp/28287-swift-type-transform-47ce9c.o 1. While type-checking 'b' at validation-test/compiler_crashers/28287-swift-type-transform.swift:10:1 <unknown>:0: error: unable to execute command: Aborted <unknown>:0: error: compile command failed due to signal (use -v to see invocation) ```
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@swift-ci Please test and merge :-) |
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What's in this pull request?
Crash case with stack trace:
Resolved bug number: –
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