Add missing "temp_table_reflect_indexes" to SuiteRequirements

Provide a default value for this requirement to expose it
to external dialects.

Change-Id: I3801a9134493efb65caa6793ef466a3cfb701592

lib/sqlalchemy/testing/requirements.py

@@ -575,6 +575,10 @@ class SuiteRequirements(Requirements):
     def temp_table_reflection(self):
         return exclusions.open()
 
+    @property
+    def temp_table_reflect_indexes(self):
+        return self.temp_table_reflection
+
     @property
     def temp_table_names(self):
         """target dialect supports listing of temporary table names"""