mutable decl syntax change

testbed/main.bro

@@ -25,7 +25,7 @@ tier_bonus func(tier Tier) i32 {
 }
 
 projected_score func(player Player) i32 {
-	total i32 = player.score
+	total i32 := player.score
 	total += tier_bonus(player.tier)
 	if player.active and player.streak > 2 {
 		total += player.streak * 3
@@ -42,8 +42,8 @@ apply_decay func(players []mut Player) void {
 }
 
 best_player func(players []mut Player) ?@mut Player {
-	best ?@mut Player = null
-	best_score i32 = 0
+	best ?@mut Player := null
+	best_score i32 := 0
 
 	for players |@player| {
 		score :: projected_score(player^)
@@ -62,7 +62,7 @@ best_player func(players []mut Player) ?@mut Player {
 }
 
 main func() i32 {
-	players [4]mut Player = [
+	players [4]mut Player := [
 		Player { id = PlayerID(1), name = "Ada", tier = .gold, score = 41, streak = 4, active = true },
 		Player { id = PlayerID(2), name = "Ken", tier = .silver, score = 56, streak = 1, active = true },
 		Player { id = PlayerID(3), name = "Edsger", tier = .bronze, score = 64, streak = 0, active = false },