checker: requre & in struct init; http: chunked encoding

vlib/json/json_test.v

@@ -26,7 +26,7 @@ struct User {
 	nums      	[]int
 	last_name 	string 	[json:lastName]
 	is_registered	bool 	[json:IsRegistered]
-    typ int  [json:'type']
+	typ int  [json:'type']
 	pets string [raw; json:'pet_animals']
 }
 
@@ -47,7 +47,7 @@ fn test_parse_user() {
 	assert u.nums[0] == 1
 	assert u.nums[1] == 2
 	assert u.nums[2] == 3
-    assert u.typ == 1
+	assert u.typ == 1
 	assert u.pets == '{"name":"Bob","animal":"Dog"}'
 }
 
@@ -73,3 +73,25 @@ fn test_raw_json_field() {
     assert color.space == 'YCbCr'
 }
 
+struct City {
+	name string
+}
+
+struct Country {
+	cities []City
+	name string
+}
+
+fn test_struct_in_struct() {
+	country := json.decode(Country, '{ "name": "UK", "cities": [{"name":"London"}, {"name":"Manchester"}]}') or {
+		assert false
+		exit(1)
+	}
+	assert country.name == 'UK'
+	assert country.cities.len == 2
+	assert country.cities[0].name == 'London'
+	assert country.cities[1].name == 'Manchester'
+	println(country.cities)
+
+}
+