Auto merge of #29945 - Loirooriol:fix-float-placement-with-future-margins-2, r=mrobinson

Properly position floats when subsequent boxes collapse margins with containing block (2)

PR #29939 tried to address this but missed various cases.

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- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #29944
- [X] There are tests for these changes

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tests/wpt/meta/css/CSS2/floats-clear/adjoining-float-nested-forced-clearance-002.html.ini

@@ -0,0 +1,2 @@
+[adjoining-float-nested-forced-clearance-002.html]
+  expected: FAIL

tests/wpt/meta/css/CSS2/floats-clear/clear-on-parent-with-margins-no-clearance.html.ini

@@ -1,2 +0,0 @@
-[clear-on-parent-with-margins-no-clearance.html]
-  expected: FAIL

tests/wpt/meta/css/CSS2/floats-clear/margin-collapse-157.xht.ini

@@ -1,2 +0,0 @@
-[margin-collapse-157.xht]
-  expected: FAIL

tests/wpt/meta/css/CSS2/floats-clear/margin-collapse-clear-015.xht.ini

@@ -1,2 +0,0 @@
-[margin-collapse-clear-015.xht]
-  expected: FAIL

tests/wpt/meta/css/CSS2/margin-padding-clear/margin-collapse-039.xht.ini

@@ -1,2 +0,0 @@
-[margin-collapse-039.xht]
-  expected: FAIL

tests/wpt/meta/css/CSS2/margin-padding-clear/margin-collapse-041.xht.ini

@@ -1,2 +0,0 @@
-[margin-collapse-041.xht]
-  expected: FAIL