layout: do not generate anonymous inline boxes

Anonymous inline boxes were blocking progress on layout caching, so they
are now gone.  Instead, we handle them in layoutInline (which meanwhile
has spaghettified to beyond comprehension...  now it's a special case
of inner BlockBox (kind of?) - incredibly, it still passes tests :P)

This seems to match what major browsers do as well; some test cases were
updated to reflect the "improved" rendering this brings.

Next I'd like to remove anonymous table boxes by generating them in
cascade.  Then it should be straightforward enough to at least reuse
flow roots on relayout.

(And clean up flow layout...)

1 files changed, 7 insertions, 10 deletions

diff --git a/test/layout/position-absolute-with-relative-inline-parent-offset.color.expected b/test/layout/position-absolute-with-relative-inline-parent-offset.color.expected
index 4ee85fbd..fd207776 100644
--- a/test/layout/position-absolute-with-relative-inline-parent-offset.color.expected
+++ b/test/layout/position-absolute-with-relative-inline-parent-offset.color.expected
@@ -1,16 +1,13 @@
 
-Note: the absolute box is sized differently than boxes in other engines, because
-the CSS standard explicitly specifies this as UB and I *really* don't want to
-make this even more complex.
-
-I don't care, but feel free to fix it ;)
+Note: per CSS, the absolute box's sizing is explicitly UB, apparently to
+accomodate for Gecko's broken rendering. We follow Blink.
 
 
 
 test test 2t 2t estadsfasdf
 test test 2     est
-asdfasd fa      
-
-
-
-test 
+asdfasd fa                                                                      
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+test