PHP constants try to parse as fuctions

[jeremyvii]

Describe the bug
When attempting to autocomplete a const in PHP, the parser thinks it is attempting to parse a function or method.

/**
 * [ description]
 *
 * @return [type]
 *   [return description]
 */
const FOO = 4;

To Reproduce
Attempt to autocomplete the following snippet

const FOO = 4;

Expected behavior

/**
 * [FOO description]
 *
 * @var [type]
 */
const FOO = 4;

Code Snippet

const FOO = 4;

Enviroment (please complete the following information):

• OS: Xubuntu
• Version 0.7.0
• Language(s) PHP