Add "benchmarks" test suite

test/benchmarks/benchmarks.status

Index: test/benchmarks/benchmarks.status
diff --git a/test/message/regress/regress-75.out b/test/benchmarks/benchmarks.status
similarity index 91%
copy from test/message/regress/regress-75.out
copy to test/benchmarks/benchmarks.status
index 336d4cee514ec2c95c79535d2b7a60a001ae25b8..651b8d7ad1a5a0abbfaa693b671fab6288d2106b 100644
--- a/test/message/regress/regress-75.out
+++ b/test/benchmarks/benchmarks.status
@@ -1,4 +1,4 @@
-# Copyright 2008 the V8 project authors. All rights reserved.
+# Copyright 2013 the V8 project authors. All rights reserved.
 # Redistribution and use in source and binary forms, with or without
 # modification, are permitted provided that the following conditions are
 # met:
@@ -25,6 +25,5 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-*%(basename)s:29: foo
-  throw "foo";
-  ^
+# Too slow in Debug mode.
+octane/mandreel: PASS, SKIP if $mode == debug