qapi/introspect: Supply missing member documentation

Since we neglect to document the members of JSONType, their
description in the QEMU QMP Reference manual is "Not documented".  Fix
that.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-ID: <20240911112545.2248881-5-armbru@redhat.com>

qapi/introspect.json

@@ -127,6 +127,22 @@
 # section 1, plus 'int' (split off 'number'), plus the obvious top
 # type 'value'.
 #
+# @string: JSON string
+#
+# @number: JSON number
+#
+# @int: JSON number that is an integer
+#
+# @boolean: literal ``false`` or ``true``
+#
+# @null: literal ``null``
+#
+# @object: JSON object
+#
+# @array: JSON array
+#
+# @value: any JSON value
+#
 # Since: 2.5
 ##
 { 'enum': 'JSONType',

qapi/pragma.json

@@ -58,7 +58,6 @@
         'InputButton',
         'IscsiHeaderDigest',
         'IscsiTransport',
-        'JSONType',
         'KeyValueKind',
         'MemoryDeviceInfoKind',
         'NetClientDriver',