bug#7940: 23.2; Home and End keys don't work as expected with both pc-selection-mode and visual-line-mode enabled

[PJ Weisberg]

1) Open or create a file with logical lines longer than the width of the
window.
2) Enable visual-line-mode and pc-selection-mode (order doesn't matter).
3) Press the <home> and/or <end> keys with point on one of these long
lines.

Expected: Point moves to the beginning/end of the current visual line.
Observed: Point moves to the beginning/end of the current logical line.

I've attached two (mutually exclusive) patches against the trunk.  I've never submitted a patch to Emacs before, so please let me know which is more in line with the preferred way of doing things.

--PJ

pc-visual-line_if.patch
Description: Text Data

pc-visual-line_function.patch
Description: Text Data