Enhance the sqlite3TreeView() display for Expr objects so that it shows
the iRightJoinTable value for Expr nodes that have the EP_FromJoin property.

FossilOrigin-Name: 5159cb8f2bcfb1f7114786ba23082d2b91a26e3a7ddfae75f8bd362792949d5e
diff --git a/src/treeview.c b/src/treeview.c
index 61d4626..e4f3d78 100644
--- a/src/treeview.c
+++ b/src/treeview.c
@@ -238,7 +238,7 @@
 void sqlite3TreeViewExpr(TreeView *pView, const Expr *pExpr, u8 moreToFollow){
   const char *zBinOp = 0;   /* Binary operator */
   const char *zUniOp = 0;   /* Unary operator */
-  char zFlgs[30];
+  char zFlgs[60];
   pView = sqlite3TreeViewPush(pView, moreToFollow);
   if( pExpr==0 ){
     sqlite3TreeViewLine(pView, "nil");
@@ -246,7 +246,12 @@
     return;
   }
   if( pExpr->flags ){
-    sqlite3_snprintf(sizeof(zFlgs),zFlgs,"  flags=0x%x",pExpr->flags);
+    if( ExprHasProperty(pExpr, EP_FromJoin) ){
+      sqlite3_snprintf(sizeof(zFlgs),zFlgs,"  flags=0x%x iRJT=%d",
+                       pExpr->flags, pExpr->iRightJoinTable);
+    }else{
+      sqlite3_snprintf(sizeof(zFlgs),zFlgs,"  flags=0x%x",pExpr->flags);
+    }
   }else{
     zFlgs[0] = 0;
   }