Hi all. I would like to report the following bug in the function LaTeX-flymake

1. Enable flymake-mode

2. With the buffer below, narrow as indicated 

3. Type in the narrowed buffer. 

Flymake will produce an error. The issue is due to incorrect position of the errors when the buffer is narrowed.

I don't think the buffer should be widened in the LaTeX-flymake function as the check can be performed in the narrowed buffer. I can see that LaTeX-flymake resembles perl-flymake. I suspect perl-flymake has similar issues, but I haven't checked as I don't use perl.

buffer contents:

\documentclass{article}
\begin{document}
0 {
a
b
c
% <----- Start narrow
d
e
f
{
% <----- End narrow
g
h
i
j
\end{document}