(defvar foo)
(defvar foo bar)
(defvar     foo)
(defvar)
(defconst foo)
(defcustom foo)
(defgroup foo)
(defvar defabc)

----------------------------------------------------

[
	["punctuation", "("], ["defvar", [ ["keyword", "defvar" ], ["variable", "foo"] ]], ["punctuation", ")"],
	["punctuation", "("], ["defvar", [ ["keyword", "defvar" ], ["variable", "foo"] ]], " bar", ["punctuation", ")"],
	["punctuation", "("], ["defvar", [ ["keyword", "defvar" ], ["variable", "foo"] ]], ["punctuation", ")"],
	["punctuation", "("], ["car", "defvar"], ["punctuation", ")"],
	["punctuation", "("], ["defvar", [ ["keyword", "defconst" ], ["variable", "foo"] ]], ["punctuation", ")"],
	["punctuation", "("], ["defvar", [ ["keyword", "defcustom" ], ["variable", "foo"] ]], ["punctuation", ")"],
	["punctuation", "("], ["defvar", [ ["keyword", "defgroup" ], ["variable", "foo"] ]], ["punctuation", ")"],
	["punctuation", "("], ["defvar", [ ["keyword", "defvar" ], ["variable", "defabc"] ]], ["punctuation", ")"]
]

----------------------------------------------------

Checks for defvar.
