--- a/vendor/gopkg.in/yaml.v2/yamlh.go	Wed Sep 18 19:17:42 2019 +0200
+++ b/vendor/gopkg.in/yaml.v2/yamlh.go	Sun Feb 16 18:54:01 2020 +0100
@@ -579,6 +579,7 @@
 
 	simple_key_allowed bool                // May a simple key occur at the current position?
 	simple_keys        []yaml_simple_key_t // The stack of simple keys.
+	simple_keys_by_tok map[int]int         // possible simple_key indexes indexed by token_number
 
 	// Parser stuff