cmd/cgo: use standard C syntax for complex types
cmd/cgo: use standard C syntax for complex types

(instead of using a GCC extension).

Change-Id: I110dc45bfe5f1377fe3453070eccde283b5cc161
Reviewed-on: https://go-review.googlesource.com/17716
Reviewed-by: Russ Cox <5ad239cb8a44f659eaaee0aa1ea5b94947abe557@golang.org>

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