Stop skipping regress-397.js

BUG=
TEST=

Review URL: http://codereview.chromium.org/8804013

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@10169 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

test/mjsunit/mjsunit.status

@@ -42,9 +42,6 @@ harmony/proxies-example-membrane: SKIP
 # NewGC: BUG(1719) slow to collect arrays over several contexts.
 regress/regress-524: SKIP
 
-# Issue 397: This has only been fixed on ia32 for now.
-regress/regress-397: SKIP
-
 ##############################################################################
 # Too slow in debug mode with --stress-opt
 compiler/regress-stacktrace-methods: PASS, SKIP if $mode == debug