scripted-diff: test: Replace uses of (dis)?connect_nodes global

-BEGIN VERIFY SCRIPT-

 # max-depth=0 excludes test/functional/test_framework/...
 FILES=$(git grep -l --max-depth 0 "connect_nodes" test/functional)

 # Replace (dis)?connect_nodes(self.nodes[a], b) with self.(dis)?connect_nodes(a, b)
 sed -i 's/\b\(dis\)\?connect_nodes(self\.nodes\[\(.*\)\]/self.\1connect_nodes(\2/g' $FILES

 # Remove imports in the middle of a line
 sed -i 's/\(dis\)\?connect_nodes, //g' $FILES
 sed -i 's/, \(dis\)\?connect_nodes//g' $FILES

 # Remove imports on a line by themselves
 sed -i '/^\s*\(dis\)\?connect_nodes,\?$/d' $FILES
 sed -i '/^from test_framework\.util import connect_nodes$/d' $FILES

-END VERIFY SCRIPT-

Co-authored-by: Elliott Jin <elliott.jin@gmail.com>

test/functional/wallet_reorgsrestore.py

@@ -20,8 +20,6 @@ import shutil
 from test_framework.test_framework import BitcoinTestFramework
 from test_framework.util import (
         assert_equal,
-        connect_nodes,
-        disconnect_nodes,
 )
 
 class ReorgsRestoreTest(BitcoinTestFramework):
@@ -38,9 +36,9 @@ class ReorgsRestoreTest(BitcoinTestFramework):
         self.sync_blocks()
 
         # Disconnect node1 from others to reorg its chain later
-        disconnect_nodes(self.nodes[0], 1)
-        disconnect_nodes(self.nodes[1], 2)
-        connect_nodes(self.nodes[0], 2)
+        self.disconnect_nodes(0, 1)
+        self.disconnect_nodes(1, 2)
+        self.connect_nodes(0, 2)
 
         # Send a tx to be unconfirmed later
         txid = self.nodes[0].sendtoaddress(self.nodes[0].getnewaddress(), Decimal("10"))
@@ -50,7 +48,7 @@ class ReorgsRestoreTest(BitcoinTestFramework):
         assert_equal(tx_before_reorg["confirmations"], 4)
 
         # Disconnect node0 from node2 to broadcast a conflict on their respective chains
-        disconnect_nodes(self.nodes[0], 2)
+        self.disconnect_nodes(0, 2)
         nA = next(tx_out["vout"] for tx_out in self.nodes[0].gettransaction(txid_conflict_from)["details"] if tx_out["amount"] == Decimal("10"))
         inputs = []
         inputs.append({"txid": txid_conflict_from, "vout": nA})
@@ -69,7 +67,7 @@ class ReorgsRestoreTest(BitcoinTestFramework):
         self.nodes[2].generate(9)
 
         # Reconnect node0 and node2 and check that conflicted_txid is effectively conflicted
-        connect_nodes(self.nodes[0], 2)
+        self.connect_nodes(0, 2)
         self.sync_blocks([self.nodes[0], self.nodes[2]])
         conflicted = self.nodes[0].gettransaction(conflicted_txid)
         conflicting = self.nodes[0].gettransaction(conflicting_txid)