Experimental code-generator changes to utilize new opcodes for sorting.

FossilOrigin-Name: bab2e560f6cb989c83a96aad60f666960ede7abe
diff --git a/src/sqliteInt.h b/src/sqliteInt.h
index 5934c74..18beb32 100644
--- a/src/sqliteInt.h
+++ b/src/sqliteInt.h
@@ -2082,6 +2082,7 @@
 #define SF_UsesEphemeral   0x0008  /* Uses the OpenEphemeral opcode */
 #define SF_Expanded        0x0010  /* sqlite3SelectExpand() called on this */
 #define SF_HasTypeInfo     0x0020  /* FROM subqueries have Table metadata */
+#define SF_UseSorter       0x0040  /* Sort using a sorter */
 
 
 /*