fix EX usage

ext/com_dotnet/com_com.c

@@ -464,7 +464,7 @@ HRESULT php_com_get_id_of_name(php_com_dotnet_object *obj, char *name,
 }
 
 /* the core of COM */
-int php_com_do_invoke_byref(php_com_dotnet_object *obj, char *name, int namelen,
+int php_com_do_invoke_byref(php_com_dotnet_object *obj, zend_internal_function *f,
 		WORD flags,	VARIANT *v, int nargs, zval *args TSRMLS_DC)
 {
 	DISPID dispid, altdispid;
@@ -472,20 +472,19 @@ int php_com_do_invoke_byref(php_com_dotnet_object *obj, char *name, int namelen,
 	HRESULT hr;
 	VARIANT *vargs = NULL, *byref_vals = NULL;
 	int i, byref_count = 0, j;
-	zend_internal_function *f = (zend_internal_function*)EX(func);
 
 	/* assumption: that the active function (f) is the function we generated for the engine */
 	if (!f || f->arg_info == NULL) {
 	   f = NULL;
 	}
 	
-	hr = php_com_get_id_of_name(obj, name, namelen, &dispid TSRMLS_CC);
+	hr = php_com_get_id_of_name(obj, f->function_name->val, f->function_name->len, &dispid TSRMLS_CC);
 
 	if (FAILED(hr)) {
 		char *winerr = NULL;
 		char *msg = NULL;
 		winerr = php_win32_error_to_msg(hr);
-		spprintf(&msg, 0, "Unable to lookup `%s': %s", name, winerr);
+		spprintf(&msg, 0, "Unable to lookup `%s': %s", f->function_name->val, winerr);
 		LocalFree(winerr);
 		php_com_throw_exception(hr, msg TSRMLS_CC);
 		efree(msg);

ext/com_dotnet/com_handlers.c

@@ -378,7 +378,7 @@ static int com_call_method(zend_string *method, zend_object *object, INTERNAL_FU
 
 	VariantInit(&v);
 
-	if (SUCCESS == php_com_do_invoke_byref(obj, method->val, method->len, DISPATCH_METHOD|DISPATCH_PROPERTYGET, &v, nargs, args TSRMLS_CC)) {
+	if (SUCCESS == php_com_do_invoke_byref(obj, (zend_internal_function*)EX(func), DISPATCH_METHOD|DISPATCH_PROPERTYGET, &v, nargs, args TSRMLS_CC)) {
 		php_com_zval_from_variant(return_value, &v, obj->code_page TSRMLS_CC);
 		ret = SUCCESS;
 		VariantClear(&v);

ext/com_dotnet/php_com_dotnet_internal.h

@@ -109,7 +109,7 @@ int php_com_do_invoke_by_id(php_com_dotnet_object *obj, DISPID dispid,
 		WORD flags,	VARIANT *v, int nargs, zval *args, int silent, int allow_noarg TSRMLS_DC);
 int php_com_do_invoke(php_com_dotnet_object *obj, char *name, int namelen,
 		WORD flags,	VARIANT *v, int nargs, zval *args, int allow_noarg TSRMLS_DC);
-int php_com_do_invoke_byref(php_com_dotnet_object *obj, char *name, int namelen,
+int php_com_do_invoke_byref(php_com_dotnet_object *obj, zend_internal_function *f,
 		WORD flags,	VARIANT *v, int nargs, zval *args TSRMLS_DC);
 
 /* com_wrapper.c */