Indicate length with more ascii goodness

Indicate the identifiers' width with more art. This makes the example look like:

	x + 5 == d.Month * y
	. .   __ . .   . . .
	. .   |  . .   . . .
	. |   |  . \_ _/ | .
	| |   |  .   |   | |
	| |   |  |   |   | 6
	| |   |  |   |   18
	| |   |  |   3
	| |   |  1/03/2010 12:00:00 a.m.
	| |   False
	| 16
	11

You may or may not think that this is a good idea.