// RUN: %swift-ide-test --code-completion --source-filename %s --code-completion-token=COMPLETE

@resultBuilder struct ViewBuilder2 {
  static func buildBlock() -> Never { fatalError() }
  static func buildBlock<Content>(_ content: Content) -> Content where Content : View2 { fatalError() }
}

protocol View2 {}

extension View2 {
  func qadding(_ edges: Set2) -> some View2 { fatalError() }
  func pnAppear(perform action: (() -> Void)? = nil) -> some View2 { fatalError() }
}

struct EmptyView2: View2 {}

struct Set2 {
  static let bottom = Set2()
}


struct AdaptsToSoftwareKeyboard {

  @ViewBuilder2 func body(content: EmptyView2) -> some View2 {
      content
            .qadding(.#^COMPLETE^#bottom)
            .pnAppear(perform: subscribeToKeyboardEvents)
    }

    private func subscribeToKeyboardEvents() {}
}

other AutoClosureExpr must be handled specially
UNREACHABLE executed at /Users/alex/swift-src/swift/lib/Sema/TypeCheckCodeCompletion.cpp:193!
PLEASE submit a bug report to https://bugs.llvm.org/ and include the crash backtrace.
Stack dump:
0.  Program arguments: /Users/alex/swift-src/nbuild/Release+Asserts/bin/swift-ide-test -module-cache-path /Users/alex/swift-src/nbuild/Release+Asserts/swift-test-results/x86_64-apple-macosx10.9/clang-module-cache -completion-cache-path /Users/alex/swift-src/nbuild/Release+Asserts/swift-test-results/x86_64-apple-macosx10.9/completion-cache -swift-version 4 --code-completion --source-filename /Users/alex/swift-src/swift/test/SourceKit/test.swift --code-completion-token=COMPLETE -I /Users/alex/swift-src/swift/test/SourceKit/Inputs/Purchases.swiftinterface
1.  While performing new completion
2.  While evaluating request CodeCompletionSecondPassRequest(source_file "/Users/alex/swift-src/swift/test/SourceKit/test.swift", )
3.  While code-completion expression at [/Users/alex/swift-src/swift/test/SourceKit/test.swift:25:7 - line:27:57] RangeText="content
            .qadding(.bottom)
            .pnAppear(perform: subscribeToKeyboardEvents"
Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it):
0  swift-ide-test           0x000000010d50fc67 llvm::sys::PrintStackTrace(llvm::raw_ostream&, int) + 39
1  swift-ide-test           0x000000010d50ea88 llvm::sys::RunSignalHandlers() + 248
2  swift-ide-test           0x000000010d510296 SignalHandler(int) + 262
3  libsystem_platform.dylib 0x00007fff20365d7d _sigtramp + 29
4  libsystem_platform.dylib 000000000000000000 _sigtramp + 18446603339975729824
5  libsystem_c.dylib        0x00007fff20275411 abort + 120
6  swift-ide-test           0x000000010d46a452 llvm::llvm_unreachable_internal(char const*, char const*, unsigned int) + 482
7  swift-ide-test           0x00000001099c5c67 (anonymous namespace)::SanitizeExpr::walkToExprPre(swift::Expr*) + 1655
8  swift-ide-test           0x0000000108b5a9a4 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Expr*) + 84
9  swift-ide-test           0x0000000108b5b837 swift::ASTVisitor<(anonymous namespace)::Traversal, swift::Expr*, swift::Stmt*, bool, swift::Pattern*, bool, void>::visit(swift::Expr*) + 3815
10 swift-ide-test           0x0000000108b5cd82 (anonymous namespace)::Traversal::visitApplyExpr(swift::ApplyExpr*) + 210
11 swift-ide-test           0x0000000108b5a1f1 swift::Expr::walk(swift::ASTWalker&) + 81
12 swift-ide-test           0x00000001099c3470 swift::TypeChecker::typeCheckForCodeCompletion(swift::constraints::SolutionApplicationTarget&, bool, llvm::function_ref<void (swift::constraints::Solution const&)>) + 464
13 swift-ide-test           0x00000001099c49f6 swift::UnresolvedMemberTypeCheckCompletionCallback::fallbackTypeCheck(swift::DeclContext*) + 166
14 swift-ide-test           0x0000000108e345ba (anonymous namespace)::CodeCompletionCallbacksImpl::doneParsing() + 874
15 swift-ide-test           0x0000000109d467c8 swift::Parser::performCodeCompletionSecondPassImpl(swift::CodeCompletionDelayedDeclState&) + 888
16 swift-ide-test           0x0000000109d46348 swift::CodeCompletionSecondPassRequest::evaluate(swift::Evaluator&, swift::SourceFile*, swift::CodeCompletionCallbacksFactory*) const + 232
17 swift-ide-test           0x0000000109d50a1f llvm::Expected<swift::CodeCompletionSecondPassRequest::OutputType> swift::Evaluator::getResultUncached<swift::CodeCompletionSecondPassRequest>(swift::CodeCompletionSecondPassRequest const&) + 271
18 swift-ide-test           0x0000000109d46157 swift::CodeCompletionSecondPassRequest::OutputType swift::evaluateOrDefault<swift::CodeCompletionSecondPassRequest>(swift::Evaluator&, swift::CodeCompletionSecondPassRequest, swift::CodeCompletionSecondPassRequest::OutputType) + 55
19 swift-ide-test           0x0000000108e59b01 swift::ide::CompletionInstance::performNewOperation(llvm::Optional<llvm::hash_code>, swift::CompilerInvocation&, llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem>, llvm::MemoryBuffer*, unsigned int, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >&, swift::DiagnosticConsumer*, llvm::function_ref<void (swift::CompilerInstance&, bool)>) + 529
20 swift-ide-test           0x0000000108e59f98 swift::ide::CompletionInstance::performOperation(swift::CompilerInvocation&, llvm::ArrayRef<char const*>, llvm::IntrusiveRefCntPtr<llvm::vfs::FileSystem>, llvm::MemoryBuffer*, unsigned int, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >&, swift::DiagnosticConsumer*, llvm::function_ref<void (swift::CompilerInstance&, bool)>) + 680
21 swift-ide-test           0x0000000108a6fac0 doCodeCompletionImpl(swift::CodeCompletionCallbacksFactory*, swift::CompilerInvocation const&, llvm::StringRef, llvm::StringRef, llvm::StringRef, bool) + 1376
22 swift-ide-test           0x0000000108a62560 main + 26144
23 libdyld.dylib            0x00007fff2033bf3d start + 1