go/types: avoid redundant call to recordUse for anonymous fields
go/types: avoid redundant call to recordUse for anonymous fields

Anonymous fields are type expressions, and Checker.typexpr already
correctly records uses within them.  There's no need for a second
call, and the second call caused a bug when we implemented aliases.

Change-Id: I1bf2429cd4948d68b085e75dfb1bdc03ad8caffd
Reviewed-on: https://go-review.googlesource.com/32837
Reviewed-by: Robert Griesemer <a6752097faebf1f02d80107d77a9be009089afe3@golang.org>

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