cmd/v: fix `run`

cmd/v/v.v

@@ -47,8 +47,8 @@ fn main() {
 		return
 	}
 	prefs, command := parse_args(args)
-	//println('main() command = $command')
 	if prefs.is_verbose {
+		println('command = "$command"')
 		println(util.full_v_version())
 	}
 	if prefs.is_verbose {
@@ -168,6 +168,12 @@ fn parse_args(args []string) (&pref.Preferences, string) {
 	if command.ends_with('.v') || os.exists(command) {
 		res.path = command
 	}
+	else if command == 'run' {
+		res.path = args[args.len-1]
+	}
+	if res.is_verbose {
+		println('setting pref.path to "$res.path"')
+	}
 	res.fill_with_defaults()
 	return res, command
 }

vlib/v/parser/fn.v

@@ -117,7 +117,7 @@ fn (p mut Parser) fn_decl() ast.FnDecl {
 			p.error('function names cannot contain uppercase letters, use snake_case instead')
 		}
 		if is_method && p.table.get_type_symbol(rec_type).has_method(name) {
-			p.warn('duplicate method `$name`')
+			p.error('duplicate method `$name`')
 		}
 	}
 	if p.tok.kind in [.plus, .minus, .mul, .div, .mod] {