reflect: allow Len on String values. It's probably just an oversight that it doesn't work, perhaps caused by analogy with Cap.
reflect: allow Len on String values.
It's probably just an oversight that it doesn't work,
perhaps caused by analogy with Cap.

R=golang-dev, dsymonds
CC=golang-dev
http://codereview.appspot.com/4634125

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