fix(php): 修复对象值解析和函数参数处理问题

- 修复了对象值解析时未正确解析标识符的问题
- 为 FunctionDef 类的 argInfoList 属性添加了 PHPDoc 注释
- 在示例文件中添加了测试函数来验证参数处理功能
- 实现了对带默认值参数的正确处理逻辑

examples/obj.php

@@ -11,6 +11,11 @@ class Test
         $this->b = $b;
     }
 
+    public function testArg(int $a, int $b = 3, string $s = 'hello'): int
+    {
+        return $a + $b + strlen($s);
+    }
+
     public function test()
     {
         return $this->a + $this->b;

src/Php/CompilerBase.php

@@ -845,7 +845,7 @@ class CompilerBase extends \PhpAot\Core\Translator
             } elseif ($this->isFuncCallExpr($right) and $this->isNameExpr($right->name)) {
                 $fn = $this->parseIdentifier($right->name);
                 if (count($right->args) === 2 and $fn === 'objval' and $this->isScalarString($right->args[1]->value)) {
-                    $this->objects[$var] = $right->args[1]->value;
+                    $this->objects[$var] = $this->parseIdentifier($right->args[1]->value);
                     $type = self::TYPE_OBJECT;
                 }
             }

src/Php/FunctionDef.php

@@ -6,6 +6,9 @@ class FunctionDef
 {
     public string $name;
     public string $returnType;
+    /**
+     * @var array<ArgInfo>
+     */
     public array $argInfoList = [];
     public int $argCountRequired = 0;
     public string $params = '';

src/Php/Translator.php

@@ -600,7 +600,12 @@ class Translator extends Preprocessor
 
         $callParams = '';
         foreach ($methodDef->functionDef->argInfoList as $k => $argInfo) {
-            $expr = $this->convertExprFromType($argInfo->type, 'ZEND_CALL_ARG(EG(current_execute_data), ' . ($k + 1) . ')');
+            if ($argInfo->default) {
+                $argExpr = 'php::getCallArg(' . $k . ', ' . $argInfo->default . ')';
+            } else {
+                $argExpr = 'php::getCallArg(' . $k . ')';
+            }
+            $expr = $this->convertExprFromType($argInfo->type, $argExpr);
             $cppCode .= $this->getIndent() . $argInfo->type . ' arg_' . $argInfo->name . ' = ' . $expr . ';' . PHP_EOL;
             $callParams .= 'arg_' . $argInfo->name . ',';
         }