gen: add type name to comp for (#10881)

vlib/builtin/builtin.v

@@ -108,6 +108,7 @@ pub:
 	args        []MethodArgs
 	return_type int
 	typ         int
+	type_name   string
 }
 
 // FieldData holds information about a field. Fields reside on structs.
@@ -119,6 +120,7 @@ pub:
 	is_mut    bool
 	is_shared bool
 	typ       int
+	type_name string
 }
 
 enum AttributeKind {