Give the sqlite3 object a pointer to the current Parse so that if an OOM

occurs, it can automatically set the Parse.rc value to SQLITE_NOMEM.  This
avoids a frequent extra test of db.mallocFailed in the innermost parser loop.

FossilOrigin-Name: 5c6638040b3017c6be016441422d965a3ca00dd6ae1f78cadc0b54562978f64e

src/malloc.c

@@ -661,6 +661,9 @@ void sqlite3OomFault(sqlite3 *db){
       db->u1.isInterrupted = 1;
     }
     db->lookaside.bDisable++;
+    if( db->pParse ){
+      db->pParse->rc = SQLITE_NOMEM_BKPT;
+    }
   }
 }