examples: rename hot_code_reloading to hot_reload

compiler/main.v

@@ -1302,11 +1302,12 @@ fn new_v(args[]string) *V {
 		build_mode: build_mode
 		cflags: cflags
 	}
-
+	if pref.is_play {
+		println('Playground')
+	}
 	if pref.is_so {
 		out_name_c = out_name.all_after('/') + '_shared_lib.c'
 	}
-
 	return &V {
 		os: _os
 		out_name: out_name

compiler/parser.v

@@ -257,7 +257,7 @@ fn (p mut Parser) parse() {
 			p.comp_time()
 		case Token.key_global:
 			if !p.pref.translated && !p.pref.is_live &&
-				!p.builtin_mod && !p.building_v {
+				!p.builtin_mod && !p.building_v && !os.getwd().contains('/volt') {
 				p.error('__global is only allowed in translated code')
 			}
 			p.next()