6g: set kind to KindUnsafePointer where appropriate in reflect structures.
6g: set kind to KindUnsafePointer where appropriate in reflect structures.

R=rsc, ken2, r
CC=golang-dev
http://codereview.appspot.com/2355043

h8liu/golang,tv42/old-go,tv42/old-go,apparentlymart/golang,tv42/old-go,pombredanne/go-deleteme,gnanderson/go,gnanderson/go,gnanderson/go,ssrl/go,tv42/old-go,h8liu/golang,h8liu/golang,apparentlymart/golang,pombredanne/go-deleteme,apparentlymart/golang,h8liu/golang,apparentlymart/golang,pombredanne/go-deleteme,ssrl/go,apparentlymart/golang,h8liu/golang,dsriram/golang,gnanderson/go,tv42/old-go,pombredanne/go-deleteme,pombredanne/go-deleteme,ssrl/go,gnanderson/go,pombredanne/go-deleteme,dsriram/golang,pombredanne/go-deleteme,dsriram/golang,apparentlymart/golang,dsriram/golang,gnanderson/go,gnanderson/go,dsriram/golang,apparentlymart/golang,tv42/old-go,tv42/old-go,dsriram/golang,ssrl/go,h8liu/golang,dsriram/golang,ssrl/go,ssrl/go,h8liu/golang,ssrl/go