f Add borowck hints for pre-NLL Rust

Author: TheBlueMatt

lightning/src/ln/channel.rs

@@ -4479,7 +4479,7 @@ mod tests {
 		macro_rules! test_commitment {
 			( $their_sig_hex: expr, $our_sig_hex: expr, $tx_hex: expr, {
 				$( { $htlc_idx: expr, $their_htlc_sig_hex: expr, $our_htlc_sig_hex: expr, $htlc_tx_hex: expr } ), *
-			} ) => {
+			} ) => { {
 				unsigned_tx = {
 					let mut res = chan.build_commitment_transaction(0xffffffffffff - 42, &keys, true, false, chan.feerate_per_kw);
 					let htlcs = res.2.drain(..)
@@ -4543,7 +4543,7 @@ mod tests {
 					if htlc_sig.is_none() { break; }
 					assert!((htlc_sig.unwrap().1).1.is_none());
 				}
-			}
+			} }
 		}
 
 		{