Make android.check work by using case statement in android-run.py

tools/android-run.py

 #!/usr/bin/env python
 #
 # Copyright 2012 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:
 #
 #     * Redistributions of source code must retain the above copyright
 #       notice, this list of conditions and the following disclaimer.
 #     * Redistributions in binary form must reproduce the above
@@ skipping 73 matching lines @@
   return fname
 
 def Main():
   if (len(sys.argv) == 1):
     print("Usage: %s <command-to-run-on-device>" % sys.argv[0])
     return 1
   workspace = abspath(join(dirname(sys.argv[0]), '..'))
   android_workspace = os.getenv("ANDROID_V8", "/data/local/v8")
   args = [Escape(arg) for arg in sys.argv[1:]]
   script = (" ".join(args) + "\n"
-            "if [ $? -ne 0 ]\n"
-            "  then echo \"Error returned by test\";\n"
-            "fi\n")
+            "case $? in\n"
+            "  0) break;;\n"
+            "  *) echo \"Error returned by test\";;\n"
+            "esac\n")
   script = script.replace(workspace, android_workspace)
   script_file = WriteToTemporaryFile(script)
   android_script_file = android_workspace + "/" + script_file
   command =  ("adb push '%s' %s;" % (script_file, android_script_file) +
               "adb shell 'sh %s';" % android_script_file +
               "adb shell 'rm %s'" % android_script_file)
   error_code = Execute(command)
   os.unlink(script_file)
   return error_code
 
 if __name__ == '__main__':
   sys.exit(Main())