225382 - clean up / refine quirks mode line breaking of replaced elements

Status: NEW

(Core :: Layout: Block and Inline, defect)

Description

[David Baron :dbaron: (⌚️UTC-5, no longer working on Mozilla)]

Bug 32191 changed the way we handle line-breaking around replaced elements in
quirks mode.  The code was a bit ugly -- probably at the wrong level of code --
and also doesn't match the IE/Windows behavior that we're trying to emulate.

Tests at: http://dbaron.org/css/test/2003/line-breaking/

IE/Windows 6.0 and Opera 7.21 seem to match perfectly.

Safari 1.1, IE/Mac, and Mozilla-standards-mode match perfectly.

Mozilla-quirks-mode is different.  (The 02-* tests are pretty much irrelevant.)