cache builtin modules

vlib/crypto/rand/rand.v

@@ -10,12 +10,18 @@ const (
 
 // NOTE: temp until we have []bytes(buff)
 fn c_array_to_bytes_tmp(len, buffer voidptr) []byte {
+
 	mut arr := []byte
+	arr = make(len, 1, 1)
+	arr.data = buffer
+	/*
+
 	arr = array {
 		len: len
 		cap: 1
 		element_size: 1
 		data: buffer
 	}
+	*/
 	return arr
 }