Bug 1223510, part 1 - Always finishTest() in test_nonUnicode.html. r=baku

This could cause hangs if the last part does not throw an exception.

dom/archivereader/test/test_nonUnicode.html

@@ -64,8 +64,8 @@
       ok(false, "Should have thrown for bogus encoding label.");
     } catch (e) {
       ok(e instanceof RangeError, "Expected a RangeError");
-      finishTest();
     }
+    finishTest();
   }
 
   function testSteps()