Fix type incomplete of argument in away procedure that has a pointer to

that that is never used outside of procedure definition. We emit void.

core_codegen_c_language.cpp

@@ -80,7 +80,12 @@ get_ctype_name_for_type(Ast_Type *type){
     case TYPE_TUPLE: return "Tuple";
     case TYPE_TYPE: return "int64_t";
 
-    case TYPE_INCOMPLETE: return "(Internal compiler error: [Type_Incomplete])";
+    case TYPE_INCOMPLETE: {
+      // This happens in case where we have a procedure in an away module.
+      // And that procedure takes a pointer from a struct that is never
+      // use elsewhere. In that case this seems fine.
+      return "void";
+    }
     invalid_default_case;
   }
   return "<unknown_type>";