[PATCH v3 41/47] qapi/introspect.py: replace 'extra' dict with 'comment' argument

[John Snow <jsnow@redhat.com>]

This is only used to pass in a dictionary with a comment already set, so
skip the runaround and just accept the comment.

Signed-off-by: John Snow <jsnow@redhat.com>
---
 scripts/qapi/introspect.py | 17 ++++++++---------
 1 file changed, 8 insertions(+), 9 deletions(-)

diff --git a/scripts/qapi/introspect.py b/scripts/qapi/introspect.py
index 54bc75393c..c444214090 100644
--- a/scripts/qapi/introspect.py
+++ b/scripts/qapi/introspect.py
@@ -51,12 +51,11 @@
 
 
 def _make_tree(obj: Union[_DObject, str], ifcond: List[str],
-               extra: Optional[Extra] = None
-               ) -> AnnotatedNode:
-    if extra is None:
-        extra = {}
-    if ifcond:
-        extra['if'] = ifcond
+               comment: Optional[str] = None) -> AnnotatedNode:
+    extra: Extra = {
+        'if': ifcond,
+        'comment': comment,
+    }
     return (obj, extra)
 
 
@@ -199,18 +198,18 @@ def _gen_features(cls,
     def _gen_tree(self, name: str, mtype: str, obj: _DObject,
                   ifcond: List[str],
                   features: Optional[List[QAPISchemaFeature]]) -> None:
-        extra: Extra = None
+        comment: Optional[str] = None
         if mtype not in ('command', 'event', 'builtin', 'array'):
             if not self._unmask:
                 # Output a comment to make it easy to map masked names
                 # back to the source when reading the generated output.
-                extra = {'comment': '"%s" = %s' % (self._name(name), name)}
+                comment = f'"{self._name(name)}" = {name}'
             name = self._name(name)
         obj['name'] = name
         obj['meta-type'] = mtype
         if features:
             obj['features'] = self._gen_features(features)
-        self._trees.append(_make_tree(obj, ifcond, extra))
+        self._trees.append(_make_tree(obj, ifcond, comment))
 
     def _gen_member(self,
                     member: QAPISchemaObjectTypeMember) -> AnnotatedNode:
-- 
2.26.2