The old logic wasn't quite right, and a little hard to follow.
Before this, because breakpoints sent from setBreakpoints don't have an
end line or column they are just a single point the comparison would
fail the check due to the column check.
E.g. if I have a breakpoint on line 30.
The content lines range from 29-31.
Now lets say the end column is at postion 10, but my breakpoint is at
L30 column 11 (still within range).
The overlap check would fail because 11 > 10 but these shouldn't be
compared at all in this case.
Signed-off-by: Brian Goff <cpuguy83@gmail.com>