Ensure _.find and _.findLast pass the correct key param to predicate. [closes #2367]

lodash.js

@@ -4549,6 +4549,31 @@
       return wrapper;
     }
 
+    /**
+     * Creates a `_.find` or `_.findLast` function.
+     *
+     * @private
+     * @param {Function} findIndexFunc The function to find the collection index.
+     * @returns {Function} Returns the new find function.
+     */
+    function createFind(findIndexFunc) {
+      return function(collection, predicate, fromIndex) {
+        var iterable = Object(collection);
+        predicate = getIteratee(predicate, 3);
+        if (!isArrayLike(collection)) {
+          var props = keys(collection);
+        }
+        var index = findIndexFunc(props || collection, function(value, key) {
+          if (props) {
+            key = value;
+            value = iterable[key];
+          }
+          return predicate(value, key, iterable);
+        }, fromIndex);
+        return index > -1 ? collection[props ? props[index] : index] : undefined;
+      };
+    }
+
     /**
      * Creates a `_.flow` or `_.flowRight` function.
      *
@@ -8472,11 +8497,7 @@
      * _.find(users, 'active');
      * // => object for 'barney'
      */
-    function find(collection, predicate, fromIndex) {
-      collection = isArrayLike(collection) ? collection : values(collection);
-      var index = findIndex(collection, predicate, fromIndex);
-      return index > -1 ? collection[index] : undefined;
-    }
+    var find = createFind(findIndex);
 
     /**
      * This method is like `_.find` except that it iterates over elements of
@@ -8498,11 +8519,7 @@
      * });
      * // => 3
      */
-    function findLast(collection, predicate, fromIndex) {
-      collection = isArrayLike(collection) ? collection : values(collection);
-      var index = findLastIndex(collection, predicate, fromIndex);
-      return index > -1 ? collection[index] : undefined;
-    }
+    var findLast = createFind(findLastIndex);
 
     /**
      * Creates a flattened array of values by running each element in `collection`