wip: working on analyzer

- Feat: add assigns analysis
- Fix: change node check condition in binary math analysis
- Feat: add unary and binary conditions analysis
- Fix: add type passtrough in declaration analysis
- Feat: add unary math analysis

src/compiler/analyzer/an_declaration.c

@@ -67,5 +67,5 @@ fzl_an_res_t analyze_declaration(fzl_analyzer_t *analyzer, fzl_node_t *decl)
                          classname);
   }
 
-  return (fzl_an_res_t){.error = false, .type = FZL_TYPE_NULL};
+  return (fzl_an_res_t){.error = false, .type = type, .classname = classname};
 }