test: add test for issue 15084
test: add test for issue 15084

The underlying issues have been fixed.
All the individual fixes have their own tests,
but it's still useful to have a plain source test.

Fixes #15084

Change-Id: I06c485a7d0716201bd57d1f3be53668dddd7ec14
Reviewed-on: https://go-review.googlesource.com/22426
Run-TryBot: Josh Bleecher Snyder <cdc248cc4d32e4fbfe04e45228163bcecd48a0b9@gmail.com>
TryBot-Result: Gobot Gobot <66cb808b70d30c07676d5e946fee83fd561249e5@golang.org>
Reviewed-by: David Chase <ae171625adc8645b8b79b7e405a6da5aba5341e0@google.com>

christopher-henderson/Go,Cofyc/go,codestation/go,linux-on-ibm-z/go,derekmarcotte/go,akutz/go,nawawi/go,vsekhar/elastic-go,4ad/go,momchil-velikov/go,suncycheng/go,polyverse-security/go,derekmarcotte/go,linux-on-ibm-z/go,CAFxX/go,vsekhar/elastic-go,theif519/go,golang/go,ganboing/go-esx,nawawi/go,cloudflare/go,momchil-velikov/go,goodlang/good,codestation/go,josharian/go,ganboing/go-esx,linux-on-ibm-z/go,derekmarcotte/go,4ad/go,ganboing/go-esx,derekmarcotte/go,suncycheng/go,polyverse-security/go,derekmarcotte/go,4ad/go,linux-on-ibm-z/go,4ad/go,momchil-velikov/go,goodlang/good,josharian/go,suncycheng/go,akutz/go,CAFxX/go,ganboing/go-esx,codestation/go,goodlang/good,cloudflare/go,suncycheng/go,josharian/go,akutz/go,golang/go,Cofyc/go,CAFxX/go,ImJasonH/go,Cofyc/go,goodlang/good,ganboing/go-esx,suncycheng/go,ImJasonH/go,vsekhar/elastic-go,CAFxX/go,josharian/go,vsekhar/elastic-go,akutz/go,akutz/go,vsekhar/elastic-go,vsekhar/elastic-go,theif519/go,akutz/go,ImJasonH/go,linux-on-ibm-z/go,Cofyc/go,momchil-velikov/go,derekmarcotte/go,akutz/go,linux-on-ibm-z/go,CAFxX/go,josharian/go,theif519/go,momchil-velikov/go,theif519/go,momchil-velikov/go,goodlang/good,akutz/go,cloudflare/go,theif519/go,suncycheng/go,codestation/go,theif519/go,momchil-velikov/go,golang/go,nawawi/go,ganboing/go-esx,ImJasonH/go,golang/go,suncycheng/go,polyverse-security/go,vsekhar/elastic-go,cloudflare/go,ganboing/go-esx,Cofyc/go,golang/go,nawawi/go,polyverse-security/go,goodlang/good,ImJasonH/go,polyverse-security/go,ImJasonH/go,linux-on-ibm-z/go,CAFxX/go,josharian/go,polyverse-security/go,4ad/go,goodlang/good,ganboing/go-esx,derekmarcotte/go,theif519/go,codestation/go,ImJasonH/go,goodlang/good,codestation/go,nawawi/go,vsekhar/elastic-go,codestation/go,cloudflare/go,golang/go,josharian/go,momchil-velikov/go,Cofyc/go,suncycheng/go,CAFxX/go,codestation/go,nawawi/go,polyverse-security/go,4ad/go,nawawi/go,ImJasonH/go,nawawi/go,cloudflare/go,CAFxX/go,golang/go,4ad/go,Cofyc/go,linux-on-ibm-z/go,josharian/go,golang/go,cloudflare/go,Cofyc/go,cloudflare/go,derekmarcotte/go,polyverse-security/go,theif519/go,4ad/go