Fix __data__ typos.

_setCacheAdd.js

@@ -12,7 +12,7 @@ const HASH_UNDEFINED = '__lodash_hash_undefined__';
  * @returns {Object} Returns the cache instance.
  */
 function setCacheAdd(value) {
-  this.__data_set(value, HASH_UNDEFINED);
+  this.__data__.set(value, HASH_UNDEFINED);
   return this;
 }
 

_setCacheHas.js

@@ -8,7 +8,7 @@
  * @returns {number} Returns `true` if `value` is found, else `false`.
  */
 function setCacheHas(value) {
-  return this.__data_has(value);
+  return this.__data__.has(value);
 }
 
 export default setCacheHas;

_stackGet.js

@@ -8,7 +8,7 @@
  * @returns {*} Returns the entry value.
  */
 function stackGet(key) {
-  return this.__data_get(key);
+  return this.__data__.get(key);
 }
 
 export default stackGet;

_stackHas.js

@@ -8,7 +8,7 @@
  * @returns {boolean} Returns `true` if an entry for `key` exists, else `false`.
  */
 function stackHas(key) {
-  return this.__data_has(key);
+  return this.__data__.has(key);
 }
 
 export default stackHas;