Fix newly introduced bug in detecing octal numbers.

test/preparser/strict-octal-number.js

Index: test/preparser/strict-octal-number.js
diff --git a/test/preparser/strict-octal-directive-after.js b/test/preparser/strict-octal-number.js
similarity index 92%
rename from test/preparser/strict-octal-directive-after.js
rename to test/preparser/strict-octal-number.js
index a878e758abe6a26d7875f7d15e4794f9ea788bc0..d387d6a32e1d434da34017a66823d875d8e020ec 100644
--- a/test/preparser/strict-octal-directive-after.js
+++ b/test/preparser/strict-octal-number.js
@@ -25,11 +25,10 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// Strict mode with octal escape in string/directive prologue after
-// "use strict" directive.
+// Strict mode with octal number literal.
 
 function foo() {
   "use strict";
-  "use hello\040world";
-  return true;
+  var x = 012;
+  return x;
 }