Create and use a function especially for adding the ParseSchema opcode.
This gives a small reduction in code and a small performance increase.

FossilOrigin-Name: 957b2ab67c6185f0e1062593d237de5c434a38bf
diff --git a/src/trigger.c b/src/trigger.c
index 0f3f5ba..6242de5 100644
--- a/src/trigger.c
+++ b/src/trigger.c
@@ -301,9 +301,8 @@
        pTrig->table, z);
     sqlite3DbFree(db, z);
     sqlite3ChangeCookie(pParse, iDb);
-    sqlite3VdbeAddOp4(v, OP_ParseSchema, iDb, 0, 0, sqlite3MPrintf(
-        db, "type='trigger' AND name='%q'", zName), P4_DYNAMIC
-    );
+    sqlite3VdbeAddParseSchemaOp(v, iDb,
+        sqlite3MPrintf(db, "type='trigger' AND name='%q'", zName));
   }
 
   if( db->init.busy ){