docs(form.FormController): add date parse error tokens to FormController.$error

☆.。.：・゜☆  Closes #9743 ☆.。.：・゜☆

Author: Cyril Lakech

Diff for: src/ng/directive/form.js

@@ -44,6 +44,11 @@ function nullFormRenameControl(control, name) {
  *  - `pattern`
  *  - `required`
  *  - `url`
+ *  - `date`
+ *  - `datetimelocal`
+ *  - `time`
+ *  - `week`
+ *  - `month`
  *
  * @description
  * `FormController` keeps track of all its controls and nested forms as well as the state of them,