foo ()
Foo_bar_42()
foo {}
Foo_bar_42{}

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

[
	["function", "foo"], ["punctuation", "("], ["punctuation", ")"],
	["function", "Foo_bar_42"], ["punctuation", "("], ["punctuation", ")"],
	["function", "foo"], ["punctuation", "{"], ["punctuation", "}"],
	["function", "Foo_bar_42"], ["punctuation", "{"], ["punctuation", "}"]
]

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

Checks for functions.