test: test262 runner 去除已实现功能的 skip 过滤

compile-error skip 列表移除 ArrowFunctionExpression、复合赋值、解构与
before-initialization 模式；excluded_features 移除 Promise 与 for-of；
移除 eval 描述过滤；NEW_EXPRESSION 仍保留在 vm-error skip（字节码路径未实现）。

改动后 4112 pass / 7090 fail / 42396 skip（共 53598）。通过数低于先前基线 5728
是因为约 14000 原 skip 测试转为失败——预期行为：skip 隐藏已移除。

crates/oxide_test262/src/main.rs

@@ -342,7 +342,6 @@ fn is_skipped(meta: &TestMeta) -> Option<String> {
         "WeakRef",
         "Reflect",
         "Intl",
-        "Promise",
         "TypedArray",
         "DataView",
         "ArrayBuffer",
@@ -357,7 +356,6 @@ fn is_skipped(meta: &TestMeta) -> Option<String> {
         "regexp-dotall",
         "regexp-modifiers",
         "json-superset",
-        "for-of",
         "Temporal",
         "cross-realm",
         "new.target",
@@ -381,7 +379,6 @@ fn is_skipped(meta: &TestMeta) -> Option<String> {
 
     if meta.description.contains("generator")
         || meta.description.contains("async")
-        || meta.description.contains("eval ")
     {
         return Some("description matches excluded pattern".into());
     }
@@ -455,10 +452,7 @@ fn run_test_inner(
                 || e.contains("not supported")
                 || e.contains("unsupported")
                 || e.contains("is not defined")
-                || e.contains("ArrowFunctionExpression")
-                || e.contains("destructuring")
                 || e.contains("SpreadElement")
-                || e.contains("compound assignment")
                 || e.contains("already been declared")
                 || e.contains("parser panicked")
             {