tree 2c5ceab1bcfd0c1aabafe0acb1cbc785bfc2710e
parent 11e51ed4bc3d901c4272ba57bde4771bb7d8f6f6
author Robert Griesemer <gri@golang.org> 1455995781 -0800
committer Robert Griesemer <gri@golang.org> 1456031558 +0000

cmd/compile: test for lower-case letters first in isAlpha

Lower-case letters are more common in identifiers.

Change-Id: I49c39e3ac810eea57d15c1433608daec212c9792
Reviewed-on: https://go-review.googlesource.com/19760
Reviewed-by: Matthew Dempsky <mdempsky@google.com>