func f(items: Any...) { }
    func f(items: [Any]) { }

    func f(items: Any..., s: String) { }
    func f(items: [Any], s: String) { }

Assertion failed: (fn->getLinkage() == linkage), function getOrCreateFunction, file /Users/buildnode/jenkins/workspace/oss-swift-package-osx/swift/lib/SIL/SILModule.cpp, line 318.
0  swift                    0x0000000103d2189b llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 43
1  swift                    0x0000000103d20ae6 llvm::sys::RunSignalHandlers() + 70
2  swift                    0x0000000103d21fef SignalHandler(int) + 383
3  libsystem_platform.dylib 0x00007fff8a23b52a _sigtramp + 26
4  swift                    0x0000000104917601 cmark_strbuf__initbuf + 71552
5  swift                    0x0000000103d21d3e abort + 14
6  swift                    0x0000000103d21d21 __assert_rtn + 81
7  swift                    0x00000001015f5abb swift::SILModule::getOrCreateFunction(swift::SILLocation, swift::SILDeclRef, swift::ForDefinition_t) + 2171
8  swift                    0x0000000101211a45 swift::Lowering::SILGenModule::getFunction(swift::SILDeclRef, swift::ForDefinition_t) + 261
9  swift                    0x00000001012bde96 (anonymous namespace)::SILGenVTable::addEntry(swift::SILDeclRef) + 614
10 swift                    0x00000001012bdadc swift::ASTVisitor<(anonymous namespace)::SILGenVTable, void, void, void, void, void, void>::visit(swift::Decl*) + 428
11 swift                    0x00000001012bd219 (anonymous namespace)::SILGenType::emitType() + 553
12 swift                    0x00000001012bcf6e swift::Lowering::SILGenModule::visitNominalTypeDecl(swift::NominalTypeDecl*) + 30
13 swift                    0x0000000101217e1b swift::Lowering::SILGenModule::emitSourceFile(swift::SourceFile*, unsigned int) + 715
14 swift                    0x0000000101218d00 swift::SILModule::constructSIL(swift::ModuleDecl*, swift::SILOptions&, swift::FileUnit*, llvm::Optional<unsigned int>, bool, bool) + 928
15 swift                    0x0000000101219225 swift::performSILGeneration(swift::FileUnit&, swift::SILOptions&, llvm::Optional<unsigned int>, bool) + 117
16 swift                    0x0000000101088996 performCompile(swift::CompilerInstance&, swift::CompilerInvocation&, llvm::ArrayRef<char const*>, int&, swift::FrontendObserver*) + 13782
17 swift                    0x00000001010840ef swift::performFrontend(llvm::ArrayRef<char const*>, char const*, void*, swift::FrontendObserver*) + 2895
18 swift                    0x0000000101046c20 main + 2448
19 libdyld.dylib            0x00007fff861a85ad start + 1
20 libdyld.dylib            0x0000000000000049 start + 2045082269