cmd/compile: convert more dxxx functions to work with LSyms
cmd/compile: convert more dxxx functions to work with LSyms

This batch from reflect.go.
Changes made manually, since they are simple,
few, and typechecked by the compiler.

Passes toolstash-check.

Change-Id: I0030daab2dac8e7c95158678c0f7141fd90441f9
Reviewed-on: https://go-review.googlesource.com/41399
Run-TryBot: Josh Bleecher Snyder <cdc248cc4d32e4fbfe04e45228163bcecd48a0b9@gmail.com>
Reviewed-by: Matthew Dempsky <e56ac2c500064424afac424d4b5e53bd0570a731@google.com>

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