anchor.diff:      }
     }
   
  -  assertFalse(
  -      'foo'.contains(new RegExp(r"f(o)$\1")), "backregexpf detects at_end");
  +  assertFalse('foo'.contains(new RegExp(r"f(o)$\1")), "backref detects at_end");
   
     // Check decimal escapes doesn't overflow.
  -  // (Note: \214 is interpregexpted as octal).
  +  // (Note: \214 is interpreted as octal).
     assertEquals(
         "\x8c7483648",
         new RegExp(r"\2147483648").firstMatch("\x8c7483648").group(0),
  
positive.code:   assertFalse("c".contains(new RegExp(re)));
    assertFalse("".contains(new RegExp(re)));
  
    // Only partially anchoregexpd.
    re = r"(?:a|bc$)";
    assertTrue("a".contains(new RegExp(re)));
    assertTrue("bc".contains(new RegExp(re)));
  
negative.code:   assertEquals(result[5][0], 'E');
    assertEquals(result[6][0], 'F');
  
    // Some tests from the Mozilla tests, where our behavior used to differ
    // from SpiderMonkey.
    // From ecma_3/RegExp/regress-334158.js
    assertTrue("\x01".contains(new RegExp(r"\ca")));
    assertFalse("\\ca".contains(new RegExp(r"\ca")));
    assertFalse("ca".contains(new RegExp(r"\ca")));
  