runtime: report "out of memory" in efence mode Currently processes crash with obscure message. Say that it's "out of memory".
runtime: report "out of memory" in efence mode
Currently processes crash with obscure message.
Say that it's "out of memory".

LGTM=rsc
R=golang-codereviews
CC=golang-codereviews, khr, rsc
https://codereview.appspot.com/75820045

h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang