Emulate PHP 7.0 CONST_ELEM docComment only in version >= 60

Author: nikic

README.md

@@ -517,6 +517,8 @@ are listed.
 
 * `AST_FUNC_DECL` and `AST_METHOD` no longer generate a `uses` child. Previously this child was
   always `null`.
+* `AST_FUNC_CONST_ELEM` now always has a `docComment` child. Previously it was absent on PHP 7.0.
+  On PHP 7.0 the value is always `null`.
 
 ### 50 (current)
 

ast.c

@@ -643,7 +643,7 @@ static void ast_fill_children_ht(HashTable *ht, zend_ast *ast, ast_state_info_t
 
 #if PHP_VERSION_ID < 70100
 	/* Emulate docComment on constants, which is not available in PHP 7.0 */
-	if (state->version >= 50 && ast->kind == ZEND_AST_CONST_ELEM) {
+	if (state->version >= 60 && ast->kind == ZEND_AST_CONST_ELEM) {
 		zval tmp;
 		ZVAL_NULL(&tmp);
 		zend_hash_add_new(ht, AST_STR(str_docComment), &tmp);

tests/class.phpt

@@ -15,7 +15,7 @@ class A extends B implements D, E {
 }
 PHP;
 
-echo ast_dump(ast\parse_code($code, $version=50));
+echo ast_dump(ast\parse_code($code, $version=60));
 
 ?>
 --EXPECTF--
@@ -69,7 +69,6 @@ AST_STMT_LIST
                 name: "test"
                 docComment: null
                 params: AST_PARAM_LIST
-                uses: null
                 stmts: null
                 returnType: null
                 __declId: 0

tests/stmt_list.phpt

@@ -16,7 +16,7 @@ declare(ticks=1) {}
 PHP;
 
 echo ast_dump(ast\parse_code($code, $version=35)), "\n";
-echo ast_dump(ast\parse_code($code, $version=50)), "\n";
+echo ast_dump(ast\parse_code($code, $version=60)), "\n";
 
 ?>
 --EXPECTF--