widl: Add async_uuid attribute base support in parser.

tools/widl/parser.y

@@ -556,6 +556,7 @@ attribute:					{ $$ = NULL; }
 	| tUSESGETLASTERROR			{ $$ = make_attr(ATTR_USESGETLASTERROR); }
 	| tUSERMARSHAL '(' type ')'		{ $$ = make_attrp(ATTR_USERMARSHAL, $3); }
 	| tUUID '(' uuid_string ')'		{ $$ = make_attrp(ATTR_UUID, $3); }
+	| tASYNCUUID '(' uuid_string ')'	{ $$ = make_attrp(ATTR_ASYNCUUID, $3); }
 	| tV1ENUM				{ $$ = make_attr(ATTR_V1ENUM); }
 	| tVARARG				{ $$ = make_attr(ATTR_VARARG); }
 	| tVERSION '(' version ')'		{ $$ = make_attrv(ATTR_VERSION, $3); }
@@ -2020,6 +2021,7 @@ struct allowed_attr allowed_attr[] =
     /* ATTR_ANNOTATION */          { 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, "annotation" },
     /* ATTR_APPOBJECT */           { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, "appobject" },
     /* ATTR_ASYNC */               { 0, 1, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "async" },
+    /* ATTR_ASYNCUUID */           { 1, 0, 1, 0, 0, 1, 1, 0, 0, 0, 1, 1, 1, 1, "async_uuid" },
     /* ATTR_AUTO_HANDLE */         { 1, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "auto_handle" },
     /* ATTR_BINDABLE */            { 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "bindable" },
     /* ATTR_BROADCAST */           { 1, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "broadcast" },

tools/widl/widltypes.h

@@ -70,6 +70,7 @@ enum attr_type
     ATTR_ANNOTATION,
     ATTR_APPOBJECT,
     ATTR_ASYNC,
+    ATTR_ASYNCUUID,
     ATTR_AUTO_HANDLE,
     ATTR_BINDABLE,
     ATTR_BROADCAST,