test the recent type alias string; print vweb templates in verbose mode

vlib/compiler/tests/type_test.v

@@ -0,0 +1,19 @@
+struct Human { name string }
+
+pub fn (h Human) str() string { return 'Human: $h.name' }
+
+type Person Human
+
+fn test_type_print() {
+	p := Person{'Bilbo'}
+	println(p)
+	assert p.str() == 'Human: Bilbo'
+}
+
+pub fn (h Person) str() string { return 'Person: $h.name' }
+
+fn test_person_str() {
+	p := Person{'Bilbo'}
+	println(p)
+	assert p.str() == 'Person: Bilbo'
+}