better comments in generated code

example/src/main.nub

@@ -1,18 +1,27 @@
 module "main"
 
-export extern "puts" func puts(text: cstring)
+extern "puts" func puts(text: cstring)
 
-export struct Human
+struct Name
 {
-    name: cstring
+    first: cstring
+    last: cstring
+}
+
+struct Human
+{
+    name: Name
 }
 
 extern "main" func main(args: []cstring): i64
 {
-    let x: cstring = "test"
+    let x: Human = {
+        name = {
+            first = "oliver"
+            last = "stene"
+        }
+    }
 
-    x = x + "uwu"
-
-    puts(x)
+    puts(x.name.last)
     return 0
 }