Do nesting for internal execute hook

Author: ndossche

ext/zend_test/observer.c

@@ -298,12 +298,16 @@ static void zend_test_execute_internal(zend_execute_data *execute_data, zval *re
 		}
 	}
 
+	ZT_G(observer_nesting_depth)++;
+
 	if (zend_test_prev_execute_internal) {
 		zend_test_prev_execute_internal(execute_data, return_value);
 	} else {
 		fbc->internal_function.handler(execute_data, return_value);
 	}
 
+	ZT_G(observer_nesting_depth)--;
+
 	if (fbc->common.function_name) {
 		if (EG(exception)) {
 			php_printf("%*s<!-- Exception: %s -->\n", 2 * ZT_G(observer_nesting_depth), "", ZSTR_VAL(EG(exception)->ce->name));

ext/zend_test/tests/execute_internal.phpt

@@ -14,6 +14,8 @@ function f($a) {
 
 f(time() > 0 ? [1, 2, 3] : []);
 
+array_map("count", [[], [1, 2]]);
+
 ?>
 --EXPECTF--
 <!-- internal enter time() -->
@@ -23,3 +25,13 @@ f(time() > 0 ? [1, 2, 3] : []);
 <!-- internal enter var_dump() -->
 int(6)
 <!-- internal leave var_dump():NULL -->
+<!-- internal enter array_map() -->
+  <!-- internal enter count() -->
+  <!-- internal leave count():0 -->
+  <!-- internal enter count() -->
+  <!-- internal leave count():2 -->
+<!-- internal leave array_map():
+  array (
+    0 => 0,
+    1 => 2,
+  ) -->