Bug 434791: [inline][quick assist] Delete key does not work after Inline local variable
Improved sorting sorting of proposals when when no explicit sorter has
been provided.

Signed-off-by: Timo Kinnunen <timo.kinnunen@gmail.com>
WIP: Don't show scrollbars if not needed by default. Unfortunately this
causes some flickering during resize and caret placement operations on
Windows.

Signed-off-by: Timo Kinnunen <timo.kinnunen@gmail.com>