style: Un-prefix -moz-tab-size (keeping the prefixed version as an alias for now)

This results in lots of new WPT test passes.

There were also a couple of WPT tests that turned out to be broken;
tab-size-inline-001 and -002 had errors in their reference files such
that they'd never pass anywhere. So those are fixed here.

Depends on D117331

Differential Revision: https://phabricator.services.mozilla.com/D117332

components/style/properties/counted_unknown_properties.py

@@ -25,7 +25,6 @@ COUNTED_UNKNOWN_PROPERTIES = [
     "-webkit-user-modify",
     "-webkit-margin-before",
     "-webkit-margin-after",
-    "tab-size",
     "-webkit-margin-start",
     "-webkit-column-break-inside",
     "-webkit-padding-start",

components/style/properties/data.py

@@ -759,7 +759,7 @@ def _add_logical_props(data, props):
 # These are probably Gecko bugs and should be supported per spec.
 def _remove_common_first_line_and_first_letter_properties(props, engine):
     if engine == "gecko":
-        props.remove("-moz-tab-size")
+        props.remove("tab-size")
         props.remove("hyphens")
         props.remove("line-break")
         props.remove("text-align-last")

components/style/properties/longhands/inherited_text.mako.rs

@@ -238,12 +238,13 @@ ${helpers.predefined_type(
 )}
 
 ${helpers.predefined_type(
-    "-moz-tab-size",
+    "tab-size",
     "NonNegativeLengthOrNumber",
     "generics::length::LengthOrNumber::Number(From::from(8.0))",
     engines="gecko",
     animation_value_type="LengthOrNumber",
     spec="https://drafts.csswg.org/css-text-3/#tab-size-property",
+    aliases="-moz-tab-size",
 )}
 
 ${helpers.predefined_type(

components/style/values/generics/length.rs

@@ -235,7 +235,7 @@ impl<LengthPercentage> MaxSize<LengthPercentage> {
     }
 }
 
-/// A generic `<length>` | `<number>` value for the `-moz-tab-size` property.
+/// A generic `<length>` | `<number>` value for the `tab-size` property.
 #[derive(
     Animate,
     Clone,