91   this.toString = function() {  method in CustomType
350   "toString": function() { return "abc"; }  method
353   "toString": function() { return "abc"; }  method
356   "toString": function() { return "abc"; }  method
360     "toString": function() { throw RangeError(); }  method
365     "toString": function() { return "abc"; }  method
393   "toString": function() { return "abc"; }  method
396   "toString": function() { return "abc"; }  method
399   "toString": function() { return "abc"; }  method
403     "toString": function() { throw RangeError(); }  method
408     "toString": function() { return "abc"; }  method