Make more use of convenience methods

FossilOrigin-Name: 89fbd7a1520ecb65809b4c1bd10006ce9bb3a662cb7e7804abaf85d1ee1da63a

src/meson.build

@@ -1,7 +1,9 @@
 executable('client',
   [
     'Alias.m',
+    'Client.mm',
     'Command.mm',
+    'ConsoleLine.m',
     'Cube.mm',
     'DynamicEntity.mm',
     'Identifier.m',
@@ -12,9 +14,11 @@ executable('client',
     'MenuItem.m',
     'OFString+Cube.mm',
     'Projectile.m',
+    'ResolverResult.mm',
+    'ResolverThread.mm',
     'ServerInfo.mm',
     'Variable.mm',
-    'client.mm',
+    'clients.mm',
     'clientextras.mm',
     'clientgame.mm',
     'clients2c.mm',
@@ -62,6 +66,7 @@ executable('client',
 
 executable('server',
   [
+    'Client.mm',
     'server.mm',
     'serverms.mm',
     'serverutil.mm',