Function equalByTag

test/babel.js:52694–52755

* A specialized version of `baseIsEqualDeep` for comparing objects of * the same `toStringTag`. * * **Note:** This function only supports comparing values with tags of * `Boolean`, `Date`, `Error`, `Number`, `RegExp`, or `String`. * * @private * @param {Object} object The object to com

(object, other, tag, bitmask, customizer, equalFunc, stack)

	 * @returns {boolean} Returns `true` if the objects are equivalent, else `false`.
	 */
	function equalByTag(object, other, tag, bitmask, customizer, equalFunc, stack) {
	  switch (tag) {
	    case dataViewTag:
	      if (object.byteLength != other.byteLength || object.byteOffset != other.byteOffset) {
	        return false;
	      }
	      object = object.buffer;
	      other = other.buffer;

	    case arrayBufferTag:
	      if (object.byteLength != other.byteLength || !equalFunc(new Uint8Array(object), new Uint8Array(other))) {
	        return false;
	      }
	      return true;

	    case boolTag:
	    case dateTag:
	    case numberTag:
	      // Coerce booleans to `1` or `0` and dates to milliseconds.
	      // Invalid dates are coerced to `NaN`.
	      return eq(+object, +other);

	    case errorTag:
	      return object.name == other.name && object.message == other.message;

	    case regexpTag:
	    case stringTag:
	      // Coerce regexes to strings and treat strings, primitives and objects,
	      // as equal. See http://www.ecma-international.org/ecma-262/7.0/#sec-regexp.prototype.tostring
	      // for more details.
	      return object == other + '';

	    case mapTag:
	      var convert = mapToArray;

	    case setTag:
	      var isPartial = bitmask & COMPARE_PARTIAL_FLAG;
	      convert || (convert = setToArray);

	      if (object.size != other.size && !isPartial) {
	        return false;
	      }
	      // Assume cyclic values are equal.
	      var stacked = stack.get(object);
	      if (stacked) {
	        return stacked == other;
	      }
	      bitmask |= COMPARE_UNORDERED_FLAG;

	      // Recursively compare objects (susceptible to call stack limits).
	      stack.set(object, other);
	      var result = equalArrays(convert(object), convert(other), bitmask, customizer, equalFunc, stack);
	      stack['delete'](object);
	      return result;

	    case symbolTag:
	      if (symbolValueOf) {
	        return symbolValueOf.call(object) == symbolValueOf.call(other);