Add doc notes on guarded methods. [ci skip]

lodash.src.js

@@ -853,12 +853,13 @@
      * `concat`, `join`, `pop`, `push`, `reverse`, `shift`, `slice`, `sort`, `splice`,
      * and `unshift`
      *
-     * The wrapper functions that support shortcut fusion are:
-     * `drop`, `dropRight`, `dropRightWhile`, `dropWhile`, `filter`, `first`,
-     * `initial`, `last`, `map`, `pluck`, `reject`, `rest`, `reverse`, `slice`,
-     * `take`, `takeRight`, `takeRightWhile`, `takeWhile`, and `where`
+     * The wrapper methods that support shortcut fusion are:
+     * `compact`, `drop`, `dropRight`, `dropRightWhile`, `dropWhile`, `filter`,
+     * `first`, `initial`, `last`, `map`, `pluck`, `reject`, `rest`, `reverse`,
+     * `slice`, `take`, `takeRight`, `takeRightWhile`, `takeWhile`, `toArray`,
+     * and `where`
      *
-     * The chainable wrapper functions are:
+     * The chainable wrapper methods are:
      * `after`, `ary`, `assign`, `at`, `before`, `bind`, `bindAll`, `bindKey`,
      * `callback`, `chain`, `chunk`, `commit`, `compact`, `concat`, `constant`,
      * `countBy`, `create`, `curry`, `debounce`, `defaults`, `defer`, `delay`,
@@ -876,7 +877,7 @@
      * `unshift`, `unzip`, `values`, `valuesIn`, `where`, `without`, `wrap`, `xor`,
      * `zip`, and `zipObject`
      *
-     * The wrapper functions that are **not** chainable by default are:
+     * The wrapper methods that are **not** chainable by default are:
      * `attempt`, `camelCase`, `capitalize`, `clone`, `cloneDeep`, `deburr`,
      * `endsWith`, `escape`, `escapeRegExp`, `every`, `find`, `findIndex`, `findKey`,
      * `findLast`, `findLastIndex`, `findLastKey`, `findWhere`, `first`, `has`,
@@ -891,7 +892,7 @@
      * `startCase`, `startsWith`, `template`, `trim`, `trimLeft`, `trimRight`,
      * `trunc`, `unescape`, `uniqueId`, `value`, and `words`
      *
-     * The wrapper function `sample` will return a wrapped value when `n` is provided,
+     * The wrapper method `sample` will return a wrapped value when `n` is provided,
      * otherwise an unwrapped value is returned.
      *
      * @name _
@@ -6171,6 +6172,15 @@
      * callback returns `true` for elements that have the properties of the given
      * object, else `false`.
      *
+     * Many lodash methods are guarded to work as interatees for methods like
+     * `_.every`, `_.filter`, `_.map`, `_.mapValues`, `_.reject`, and `_.some`.
+     *
+     * The guarded methods are:
+     * `ary`, `callback`, `chunk`, `clone`, `create`, `curry`, `curryRight`, `drop`,
+     * `dropRight`, `fill`, `flatten`, `invert`, `max`, `min`, `parseInt`, `slice`,
+     * `sortBy`, `take`, `takeRight`, `template`, `trim`, `trimLeft`, `trimRight`,
+     * `trunc`, `random`, `range`, `sample`, `uniq`, and `words`
+     *
      * @static
      * @memberOf _
      * @alias collect
@@ -6377,6 +6387,12 @@
      * value. The `iteratee` is bound to `thisArg`and invoked with four arguments;
      * (accumulator, value, index|key, collection).
      *
+     * Many lodash methods are guarded to work as interatees for methods like
+     * `_.reduce`, `_.reduceRight`, and `_.transform`.
+     *
+     * The guarded methods are:
+     * `assign`, `defaults`, `merge`, and `sortAllBy`
+     *
      * @static
      * @memberOf _
      * @alias foldl, inject