Fix tools/run-tests.py --test262-es2015

The output of the test262 runner changed between ES5.1 and ES6,
our script should respect it to signal regressions in return code too.

JerryScript-DCO-1.0-Signed-off-by: Csaba Osztrogonác [email protected]

Author: ossy-szeged

tools/runners/run-test-suite-test262.py

@@ -132,7 +132,7 @@ def main(args):
 
             if summary_found:
                 print(output, end='')
-                if ('Failed tests' in output) or ('Expected to fail but passed' in output):
+                if ('Failed tests' in output) or ('Failed Tests' in output) or ('Expected to fail but' in output):
                     return_code = 1
 
     proc.wait()