cpplib: Remove lexer_pos.

[Richard Henderson]

On Sat, Sep 15, 2001 at 10:29:54AM -0700, Per Bothner wrote:
> Room for 4 million lines is "far too restrictive"?

Also recall that the "line number" is file+line mushed 
together.  All you need is a few windows headers and your
current line number is obscenely large.

> No human-written file would be that big, and line
> numbers have little meaning in a computer-generated file.

I also asked Neil what were the consequences of overflow:
failure to get accurate line numbers, or compilation failure.
He indicated the later, which is unacceptable.


r~