fix: some analysis stage problems

src/compiler/analyzer/an_field.c

@@ -15,7 +15,7 @@ extern fzl_type_t an_toktotype(fzl_token_t *tok);
 // Analyze field access
 fzl_an_res_t analyze_field(fzl_analyzer_t *analyzer, fzl_node_t *field)
 {
-  if (analyzer)
+  if (!analyzer)
     return (fzl_an_res_t){.error = true};
 
   if (!field || field->type != FZL_NODETYPE_FIELD)
@@ -46,7 +46,7 @@ fzl_an_res_t analyze_field(fzl_analyzer_t *analyzer, fzl_node_t *field)
       break;
   }
 
-  if (sym_found)
+  if (!sym_found)
   {
     snprintf(field_problem, sizeof(field_problem), "class '%s' not found",
              parent.classname);