Bump to v4.15.0.

_asciiSize.js

@@ -0,0 +1,13 @@
+define(['./_baseProperty'], function(baseProperty) {
+
+  /**
+   * Gets the size of an ASCII `string`.
+   *
+   * @private
+   * @param {string} string The string inspect.
+   * @returns {number} Returns the string size.
+   */
+  var asciiSize = baseProperty('length');
+
+  return asciiSize;
+});