feat(pproc): 改进宏处理器中的标识符识别逻辑

修复了宏处理器中对标识符类型的检查方式，使用更准确的子类型判断函数，
确保关键字也能被正确处理为宏名或参数名。同时添加了相关的单元测试用例。

BREAKING CHANGE: 修改了token类型的检查方法

libs/pproc/tests/test_pproc_unit.c

@@ -181,6 +181,19 @@ static void test_define_nested_macros(void) {
                           "#define x 2\n"
                           "g(z)\n",
                           "f(2 * (z))\n");
+
+    TEST_CASE("with keyword as macro name or parameter name");
+    CHECK_PP_OUTPUT_EXACT(
+        "#define ASSIGN_PTR_OR_DEFAULT(assigned_val, value, default)\\\n"
+        "assigned_val = value ? value : default\n"
+        "ASSIGN_PTR_OR_DEFAULT(parser->sema_callbacks.on_decl,"
+        "callbacks->on_decl, dummy_sema_callback);\n",
+        "parser->sema_callbacks.on_decl = callbacks->on_decl ? "
+        "callbacks->on_decl : dummy_sema_callback;\n");
+
+    CHECK_PP_OUTPUT_EXACT("#define default a\n"
+                          "default\n",
+                          "a\n");
 }
 
 static void test_undef_macros(void) {