compiler: add back support for -live

cmd/tools/preludes/live_main.v

@@ -2,8 +2,10 @@ module main
 
 import os
 import time
+import dl
 
 const (
 	os_used = os.MAX_PATH
 	time_used = time.now()
+	dl_used = dl.version
 )

cmd/tools/vtest-fixed.v

@@ -20,7 +20,6 @@ const (
 		'vlib/clipboard/clipboard_test.v',
 		'vlib/sqlite/sqlite_test.v',
 
-		'vlib/v/tests/live_test.v', // Linux & Solaris only; since live does not actually work for now with v2, just skip
 		'vlib/v/tests/asm_test.v', // skip everywhere for now, works on linux with cc != tcc
 	]
 	skip_on_linux = []string{}