Testing Result Check: check "okay" instead of "fail" because of possible crash

Now the check criteria is:
"sourcename::casename: okay \*\*\*"
if the string is not present, the test result will be failed.

test/resultchecker.py

@@ -252,11 +252,11 @@ def step2(resultdir, result, servers, indents, srcdir, shellprefix, backenddir):
                     casename = case.rpartition('_')[2].partition('.')[0]
                     result.write(indent+'<'+casename+'>')
                     match=format+'::'+casename
-                    match=match+": \*\*\* fail"
+                    match=match+": okay \*\*\*"
                     if(os.system("grep -q '" + match + "' "+case)):
-                       result.write('okay')
+                       result.write('failed')
                     else:
-                        result.write('failed')
+                        result.write('okay')
                     result.write('</'+casename+'>\n')
                     indents.pop()
                     indent = indents[-1]