test: add test case for issue #13248
test: add test case for issue #13248

Issue #13248 was fixed by https://go-review.googlesource.com/#/c/16930/.
This is the corresponding test case (original offending program).

Change-Id: I7c99783db74a5422704409cea7e5073094beadd3
Reviewed-on: https://go-review.googlesource.com/16973
Reviewed-by: Chris Manghane <fe04d2e6759ff872548dffaa0000d96c00597e75@golang.org>

vsekhar/elastic-go,nawawi/go,codestation/go,theif519/go,polyverse-security/go,CAFxX/go,codestation/go,goodlang/good,momchil-velikov/go,codestation/go,sndnvaps/go,roth1002/go,goodlang/good,sndnvaps/go,CAFxX/go,mwhudson/go,mwhudson/go,nawawi/go,cloudflare/go,codestation/go,kim-racktop/go,nawawi/go,odeke-em/go,polyverse-security/go,ImJasonH/go,vsekhar/elastic-go,theif519/go,goodlang/good,nawawi/go,miolini/go,golang/go,vanloswang/go,nawawi/go,vanloswang/go,ganboing/go-esx,josharian/go,vsekhar/elastic-go,polyverse-security/go,CAFxX/go,odeke-em/go,Cofyc/go,deft-code/go,golang/go,roth1002/go,4ad/go,binarycrusader/go,CAFxX/go,vsekhar/elastic-go,linux-on-ibm-z/go,cyberroadie/go,nawawi/go,Endika/go,sndnvaps/go,cloudflare/go,Cofyc/go,vsekhar/elastic-go,roth1002/go,josharian/go,binarycrusader/go,miolini/go,polyverse-security/go,ImJasonH/go,ganboing/go-esx,Samurais/go,deft-code/go,goodlang/good,polyverse-security/go,theif519/go,ImJasonH/go,miolini/go,ganboing/go-esx,4ad/go,derekmarcotte/go,fjballest/golang,theif519/go,polyverse-security/go,momchil-velikov/go,akutz/go,cyberroadie/go,CAFxX/go,CAFxX/go,roth1002/go,binarycrusader/go,odeke-em/go,momchil-velikov/go,goodlang/good,ImJasonH/go,kim-racktop/go,linux-on-ibm-z/go,Samurais/go,ImJasonH/go,miolini/go,Samurais/go,vanloswang/go,suncycheng/go,Endika/go,suncycheng/go,4ad/go,deft-code/go,Jordanzuo/go,4ad/go,vanloswang/go,suncycheng/go,vsekhar/elastic-go,kim-racktop/go,roth1002/go,akutz/go,golang/go,binarycrusader/go,akutz/go,josharian/go,miolini/go,linux-on-ibm-z/go,CAFxX/go,ganboing/go-esx,linux-on-ibm-z/go,deft-code/go,sndnvaps/go,linux-on-ibm-z/go,cyberroadie/go,binarycrusader/go,codestation/go,fjballest/golang,sndnvaps/go,derekmarcotte/go,cloudflare/go,suncycheng/go,ganboing/go-esx,cloudflare/go,CAFxX/go,suncycheng/go,fjballest/golang,Endika/go,Endika/go,Endika/go,golang/go,linux-on-ibm-z/go,derekmarcotte/go,miolini/go,Samurais/go,akutz/go,Jordanzuo/go,cyberroadie/go,4ad/go,odeke-em/go,golang/go,miolini/go,odeke-em/go,akutz/go,goodlang/good,sndnvaps/go,golang/go,derekmarcotte/go,Jordanzuo/go,cloudflare/go,mwhudson/go,fjballest/golang,theif519/go,Cofyc/go,Samurais/go,4ad/go,goodlang/good,4ad/go,akutz/go,codestation/go,codestation/go,binarycrusader/go,suncycheng/go,mwhudson/go,momchil-velikov/go,Cofyc/go,odeke-em/go,derekmarcotte/go,Endika/go,kim-racktop/go,deft-code/go,deft-code/go,vsekhar/elastic-go,Samurais/go,cyberroadie/go,josharian/go,derekmarcotte/go,momchil-velikov/go,fjballest/golang,polyverse-security/go,Cofyc/go,deft-code/go,kim-racktop/go,Cofyc/go,ganboing/go-esx,derekmarcotte/go,vanloswang/go,Cofyc/go,fjballest/golang,odeke-em/go,josharian/go,roth1002/go,kim-racktop/go,ImJasonH/go,josharian/go,fjballest/golang,momchil-velikov/go,roth1002/go,vanloswang/go,goodlang/good,cyberroadie/go,cloudflare/go,nawawi/go,mwhudson/go,codestation/go,theif519/go,sndnvaps/go,cloudflare/go,ganboing/go-esx,mwhudson/go,4ad/go,Samurais/go,akutz/go,nawawi/go,golang/go,miolini/go,sndnvaps/go,suncycheng/go,polyverse-security/go,christopher-henderson/Go,mwhudson/go,josharian/go,fjballest/golang,Jordanzuo/go,kim-racktop/go,theif519/go,roth1002/go,josharian/go,ganboing/go-esx,vsekhar/elastic-go,derekmarcotte/go,Jordanzuo/go,odeke-em/go,linux-on-ibm-z/go,akutz/go,momchil-velikov/go,ImJasonH/go,vanloswang/go,linux-on-ibm-z/go,cyberroadie/go,momchil-velikov/go,Jordanzuo/go,theif519/go,mwhudson/go,Samurais/go,Endika/go,binarycrusader/go,binarycrusader/go,kim-racktop/go,cloudflare/go,vanloswang/go,Jordanzuo/go,Endika/go,cyberroadie/go,ImJasonH/go,Jordanzuo/go,golang/go,deft-code/go,suncycheng/go,Cofyc/go