Implement [Inline] interfaces

Inline interfaces just appear as a Rust type and in the TypeId hierarchy.
They are completely invisible on the JS side.

components/script/dom/bindings/codegen/parser/WebIDL.py

@@ -1695,7 +1695,8 @@ class IDLInterface(IDLInterfaceOrNamespace):
                   identifier == "ProbablyShortLivingObject" or
                   identifier == "LegacyUnenumerableNamedProperties" or
                   identifier == "NonOrdinaryGetPrototypeOf" or
-                  identifier == "Abstract"):
+                  identifier == "Abstract" or
+                  identifier == "Inline"):
                 # Known extended attributes that do not take values
                 if not attr.noArguments():
                     raise WebIDLError("[%s] must take no arguments" % identifier,

components/script/dom/bindings/codegen/parser/inline.patch

@@ -0,0 +1,12 @@
+--- WebIDL.py
++++ WebIDL.py
+@@ -1695,7 +1695,8 @@ class IDLInterface(IDLInterfaceOrNamespace):
+                   identifier == "ProbablyShortLivingObject" or
+                   identifier == "LegacyUnenumerableNamedProperties" or
+                   identifier == "NonOrdinaryGetPrototypeOf" or
+-                  identifier == "Abstract"):
++                  identifier == "Abstract" or
++                  identifier == "Inline"):
+                 # Known extended attributes that do not take values
+                 if not attr.noArguments():
+                     raise WebIDLError("[%s] must take no arguments" % identifier,

components/script/dom/bindings/codegen/parser/update.sh

@@ -4,6 +4,7 @@ patch < debug.patch
 patch < pref-main-thread.patch
 patch < callback-location.patch
 patch < union-typedef.patch
+patch < inline.patch
 
 wget https://hg.mozilla.org/mozilla-central/archive/tip.tar.gz/dom/bindings/parser/tests/ -O tests.tar.gz
 rm -r tests