It crashes, when passing any Sequence to Array.init(_ s: Sequence)

[carlhung]

Description
It crashes when passing any Sequence to Array.init(_ s: Sequence)
VSCode showed The SourceKit-LSP server crashed 6 times in the last 3 minutes. See the output for more information. Do you want to restart it again.

when typing command swift build, it showed the error below:

carlhung@XPS9570:~/swiftProjects/swiftPlayground$ swift build
Building for debugging...
Please submit a bug report (https://swift.org/contributing/#reporting-bugs) and include the project and the crash backtrace.
Stack dump:
0.      Program arguments: /home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /home/carlhung/swiftProjects/swiftPlayground/Sources/playground/main.swift -target x86_64-unknown-linux-gnu -disable-objc-interop -I /home/carlhung/swiftProjects/swiftPlayground/.build/x86_64-unknown-linux-gnu/debug -color-diagnostics -enable-testing -g -module-cache-path /home/carlhung/swiftProjects/swiftPlayground/.build/x86_64-unknown-linux-gnu/debug/ModuleCache -swift-version 5 -Onone -D SWIFT_PACKAGE -D DEBUG -new-driver-path /home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-driver -empty-abi-descriptor -resource-dir /home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/lib/swift -enable-anonymous-context-mangled-names -module-name playground -emit-module-doc-path /home/carlhung/swiftProjects/swiftPlayground/.build/x86_64-unknown-linux-gnu/debug/playground.build/playground.swiftdoc -emit-module-source-info-path /home/carlhung/swiftProjects/swiftPlayground/.build/x86_64-unknown-linux-gnu/debug/playground.build/playground.swiftsourceinfo -emit-dependencies-path /home/carlhung/swiftProjects/swiftPlayground/.build/x86_64-unknown-linux-gnu/debug/playground.build/playground.emit-module.d -o /home/carlhung/swiftProjects/swiftPlayground/.build/x86_64-unknown-linux-gnu/debug/playground.build/playground.swiftmodule
1.      Swift version 5.7 (swift-5.7-RELEASE)
2.      Compiling with the current language version
3.      While evaluating request TypeCheckSourceFileRequest(source_file "/home/carlhung/swiftProjects/swiftPlayground/Sources/playground/main.swift")
4.      While type-checking statement at [/home/carlhung/swiftProjects/swiftPlayground/Sources/playground/main.swift:36:1 - line:36:16] RangeText="let a = Array(s"
5.      While type-checking declaration 0x95eb850 (at /home/carlhung/swiftProjects/swiftPlayground/Sources/playground/main.swift:36:1)
6.      While evaluating request PatternBindingEntryRequest((unknown decl), 0, 0)
7.      While type-checking expression at [/home/carlhung/swiftProjects/swiftPlayground/Sources/playground/main.swift:36:9 - line:36:16] RangeText="Array(s"
8.      While type-checking-target starting at /home/carlhung/swiftProjects/swiftPlayground/Sources/playground/main.swift:36:9
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):
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x52ca843]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x52c874e]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x52cabcf]
/lib/x86_64-linux-gnu/libpthread.so.0(+0x14420)[0x7fdb7634f420]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x12bf529]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x12e116c]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x12e02f2]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x12bc17a]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x12bbdc8]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x12bab44]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x12b980a]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x11c08f2]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x11c0674]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x11c1da8]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x11c1f9c]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x1276877]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x11dfc42]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x11dfacf]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x11f5ff9]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x11f2724]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x11f265f]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x1270bfa]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x127285c]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x1271e2c]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x1271ea1]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x129fa9a]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x12a1694]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x12a151b]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x129f969]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x5da199]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x5cfd97]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x5cfc38]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x5822a3]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x45172f]
/lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf3)[0x7fdb75779083]
/home/carlhung/swift-5.7-RELEASE-ubuntu20.04/usr/bin/swift-frontend[0x45074e]

Steps to reproduce

let s: any Sequence = [35,34,6,34,3] as Set
let a = Array.init(s)

Expected behavior
No crash.

Environment
vscode
20.04.5 LTS
swift 5.7

[tbkka]

CC: @hborla @xedin

[xedin]

on main it's crashing in CSApply::coerceToType due to existential opening.