go/types: fix doc string for Named.Obj
go/types: fix doc string for Named.Obj

Fixes #19249.

Change-Id: I6327192eca11fa24f1078c016c9669e4ba4bdb4e
Reviewed-on: https://go-review.googlesource.com/37399
Reviewed-by: Brad Fitzpatrick <ae9783c0b0efc69cd85ab025ddd17aa44cdc4aa5@golang.org>

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