Rename [NoInterfaceObject] to [LegacyNoInterfaceObject]

Part of #350. Also removes some references to usages in other specs that have since been fixed, and removes the discussion of the previous usage of this extended attribute for mixin purposes, as all those usages have migrated.

Author: domenic

index.bs

@@ -1011,7 +1011,7 @@ The following extended attributes are applicable to interfaces:
 [{{Global}}],
 [{{LegacyWindowAlias}}],
 [{{LegacyFactoryFunction}}],
-[{{NoInterfaceObject}}],
+[{{LegacyNoInterfaceObject}}],
 [{{LegacyOverrideBuiltIns}}], and
 [{{SecureContext}}].
 
@@ -1021,7 +1021,7 @@ The following extended attributes are applicable to [=partial interfaces=]:
 [{{SecureContext}}].
 
 [=Interfaces=] which are not annotated
-with a [{{NoInterfaceObject}}] [=extended attribute=]
+with a [{{LegacyNoInterfaceObject}}] [=extended attribute=]
 must be annotated with an [{{Exposed}}] [=extended attribute=].
 
 <div algorithm>
@@ -9589,7 +9589,7 @@ attribute.
 The [{{LegacyNamespace}}] extended attribute [=takes an identifier|take an identifier=].
 This identifier must be the identifier of a namespace.
 
-The [{{LegacyNamespace}}] and [{{NoInterfaceObject}}]
+The [{{LegacyNamespace}}] and [{{LegacyNoInterfaceObject}}]
 extended attributes must not be specified on the same interface.
 
 See [[#namespace-object]] for details on how an interface is exposed on a namespace.
@@ -9708,7 +9708,7 @@ extended attribute on this interface or another interface,
 must not be the same as an [=identifier=] of an interface that has an [=interface object=],
 and must not be one of the [=reserved identifiers=].
 
-The [{{LegacyWindowAlias}}] and [{{NoInterfaceObject}}]
+The [{{LegacyWindowAlias}}] and [{{LegacyNoInterfaceObject}}]
 extended attributes must not be specified on the same interface.
 
 The [{{LegacyWindowAlias}}] and [{{LegacyNamespace}}]
@@ -10046,29 +10046,22 @@ a [=promise type=].
 </div>
 
 
-<h4 id="NoInterfaceObject" extended-attribute lt="NoInterfaceObject">[NoInterfaceObject]</h4>
+<h4 id="LegacyNoInterfaceObject" extended-attribute lt="LegacyNoInterfaceObject" oldids="NoInterfaceObject">[LegacyNoInterfaceObject]</h4>
 
 <div class="advisement">
 
-    The [{{NoInterfaceObject}}] [=extended attribute=] is an undesirable feature.
+    The [{{LegacyNoInterfaceObject}}] [=extended attribute=] is an undesirable feature.
     It exists only so that legacy Web platform features can be specified.
     It should not be used in specifications
     unless required to specify the behavior of legacy APIs,
     or for consistency with these APIs.
     Editors who wish to use this feature are strongly advised to discuss this
-    by <a href="https://github.com/heycam/webidl/issues/new?title=Intent%20to%20use%20[NoInterfaceObject]">filing an issue</a>
+    by <a href="https://github.com/heycam/webidl/issues/new?title=Intent%20to%20use%20[LegacyNoInterfaceObject]">filing an issue</a>
     before proceeding.
 
     <small class="non-normative">
-        The [{{NoInterfaceObject}}] [=extended attribute=] appears on the following [=interfaces=]:
-
-        {{Geolocation}},
-        {{Coordinates}},
-        {{Position}},
-        {{PositionError}},
-        {{DeviceAcceleration}},
-        {{DeviceRotationRate}},
-        {{ConstrainablePattern}},
+        The [{{LegacyNoInterfaceObject}}] [=extended attribute=] appears on the following [=interfaces=]:
+
         {{WEBGL_compressed_texture_astc}},
         {{WEBGL_compressed_texture_s3tc_srgb}},
         {{WEBGL_draw_buffers}},
@@ -10079,45 +10072,33 @@ a [=promise type=].
         {{EXT_disjoint_timer_query}},
         {{OES_standard_derivatives}}, and
         {{OES_vertex_array_object}}.
-        [[GEOLOCATION-API]]
-        [[ORIENTATION-EVENT]]
-        [[MEDIACAPTURE-STREAMS]]
         (various [[WEBGL]] extension specifications)
     </small>
 
-    Note: Previously, the [{{NoInterfaceObject}}] [=extended attribute=] could also be used
-    to annotate [=interfaces=], which other [=interfaces=] could then implement
-    (using the defunct "implements statement") as if they were mixins.
-    There is now dedicated syntax to cater for this use case
-    in the form of [=interface mixins=] and [=includes statements=].
-    Using the [{{NoInterfaceObject}}] [=extended attribute=]
-    for this purpose is no longer supported.
-    Specifications which still do are strongly encouraged
-    to migrate to [=interface mixins=] as soon as possible.
 </div>
 
-If the [{{NoInterfaceObject}}] [=extended attribute=] appears on an [=interface=],
+If the [{{LegacyNoInterfaceObject}}] [=extended attribute=] appears on an [=interface=],
 it indicates that an [=interface object=]
 will not exist for the interface in the ECMAScript binding.
 
-The [{{NoInterfaceObject}}] extended attribute
+The [{{LegacyNoInterfaceObject}}] extended attribute
 must [=takes no arguments|take no arguments=].
 
-The [{{NoInterfaceObject}}] extended attribute
+The [{{LegacyNoInterfaceObject}}] extended attribute
 must not be specified on an interface that has any
 [=constructors=] or [=static operations=] defined on it.
 
-Note: Combining the [{{NoInterfaceObject}}] and [{{LegacyFactoryFunction}}] extended attribute is not
+Note: Combining the [{{LegacyNoInterfaceObject}}] and [{{LegacyFactoryFunction}}] extended attribute is not
 forbidden, however.
 
-An interface that does not have the [{{NoInterfaceObject}}] extended
+An interface that does not have the [{{LegacyNoInterfaceObject}}] extended
 attribute specified must not inherit
-from an interface that has the [{{NoInterfaceObject}}] extended
+from an interface that has the [{{LegacyNoInterfaceObject}}] extended
 attribute specified.
 
 See [[#es-interfaces]]
 for the specific requirements that the use of
-[{{NoInterfaceObject}}] entails.
+[{{LegacyNoInterfaceObject}}] entails.
 
 <div class="example">
 
@@ -10131,7 +10112,7 @@ for the specific requirements that the use of
         };
 
         [Exposed=Window,
-         NoInterfaceObject]
+         LegacyNoInterfaceObject]
         interface Query {
           any lookupEntry(unsigned long key);
         };
@@ -11252,7 +11233,7 @@ Note: The HTML Standard defines how a security check is performed. [[!HTML]]
 
 For every [=interface=] that is [=exposed=] in
 a given [=Realm=] and that is not declared with
-the [{{NoInterfaceObject}}] or [{{LegacyNamespace}}] [=extended attributes=],
+the [{{LegacyNoInterfaceObject}}] or [{{LegacyNamespace}}] [=extended attributes=],
 a corresponding property exists on the [=Realm=]'s [=Realm/global object=].
 The name of the property is the [=identifier=] of the interface,
 and its value is an object called the <dfn id="dfn-interface-object" export>interface object</dfn>.
@@ -11424,7 +11405,7 @@ implement the interface on which the
 There will exist an <dfn id="dfn-interface-prototype-object" export>interface prototype object</dfn>
 for every [=interface=] defined,
 regardless of whether the interface was declared
-with the [{{NoInterfaceObject}}] [=extended attribute=].
+with the [{{LegacyNoInterfaceObject}}] [=extended attribute=].
 
 <div algorithm>
 
@@ -11474,7 +11455,7 @@ with the [{{NoInterfaceObject}}] [=extended attribute=].
         1.  [=Define the asynchronous iteration methods=] of |interface| on |interfaceProtoObj|
             given |realm|.
     1.  [=Define the constants=] of |interface| on |interfaceProtoObj| given |realm|.
-    1.  If the [{{NoInterfaceObject}}] [=extended attribute=] was not specified on |interface|, then:
+    1.  If the [{{LegacyNoInterfaceObject}}] [=extended attribute=] was not specified on |interface|, then:
         1.  Let |constructor| be the [=interface object=] of |interface| in |realm|.
         1.  Let |desc| be the PropertyDescriptor{\[[Writable]]: <emu-val>true</emu-val>,
             \[[Enumerable]]: <emu-val>false</emu-val>, \[[Configurable]]: <emu-val>true</emu-val>,
@@ -11497,14 +11478,14 @@ Issue: Define those properties imperatively instead.
 
     The [=interface prototype object=]
     of an [=interface=] that is defined with
-    the [{{NoInterfaceObject}}]
+    the [{{LegacyNoInterfaceObject}}]
     [=extended attribute=]
     will be accessible.
     For example, with the following IDL:
 
     <pre highlight="webidl">
         [Exposed=Window,
-         NoInterfaceObject]
+         LegacyNoInterfaceObject]
         interface Foo {
         };
 
@@ -13235,7 +13216,7 @@ the Realm given as an argument.
     1.  Sort |interfaces| in such a way that if |A| and |B| are [=list/items=] of |interfaces|,
         and |A| [=interface/inherits=] from |B|, |A| has a higher index in |interfaces| than |B|.
     1.  [=list/iterate|For every=] |interface| of |interfaces|:
-        1.  If |interface| is not declared with the [{{NoInterfaceObject}}] or
+        1.  If |interface| is not declared with the [{{LegacyNoInterfaceObject}}] or
             [{{LegacyNamespace}}] [=extended attributes=], then:
             1.  Let |id| be |interface|'s [=identifier=].
             1.  Let |interfaceObject| be the result of [=create an interface object|creating