NodeType = {
    'TOPLEVEL': 1,
    'COMMENT': 2,
    'EXCMD': 3,
    'FUNCTION': 4,
    'ENDFUNCTION': 5,
    'DELFUNCTION': 6,
    'RETURN': 7,
    'EXCALL': 8,
    'LET': 9,
    'UNLET': 10,
    'LOCKVAR': 11,
    'UNLOCKVAR': 12,
    'IF': 13,
    'ELSEIF': 14,
    'ELSE': 15,
    'ENDIF': 16,
    'WHILE': 17,
    'ENDWHILE': 18,
    'FOR': 19,
    'ENDFOR': 20,
    'CONTINUE': 21,
    'BREAK': 22,
    'TRY': 23,
    'CATCH': 24,
    'FINALLY': 25,
    'ENDTRY': 26,
    'THROW': 27,
    'ECHO': 28,
    'ECHON': 29,
    'ECHOHL': 30,
    'ECHOMSG': 31,
    'ECHOERR': 32,
    'EXECUTE': 33,
    'TERNARY': 34,
    'OR': 35,
    'AND': 36,
    'EQUAL': 37,
    'EQUALCI': 38,
    'EQUALCS': 39,
    'NEQUAL': 40,
    'NEQUALCI': 41,
    'NEQUALCS': 42,
    'GREATER': 43,
    'GREATERCI': 44,
    'GREATERCS': 45,
    'GEQUAL': 46,
    'GEQUALCI': 47,
    'GEQUALCS': 48,
    'SMALLER': 49,
    'SMALLERCI': 50,
    'SMALLERCS': 51,
    'SEQUAL': 52,
    'SEQUALCI': 53,
    'SEQUALCS': 54,
    'MATCH': 55,
    'MATCHCI': 56,
    'MATCHCS': 57,
    'NOMATCH': 58,
    'NOMATCHCI': 59,
    'NOMATCHCS': 60,
    'IS': 61,
    'ISCI': 62,
    'ISCS': 63,
    'ISNOT': 64,
    'ISNOTCI': 65,
    'ISNOTCS': 66,
    'ADD': 67,
    'SUBTRACT': 68,
    'CONCAT': 69,
    'MULTIPLY': 70,
    'DIVIDE': 71,
    'REMAINDER': 72,
    'NOT': 73,
    'MINUS': 74,
    'PLUS': 75,
    'SUBSCRIPT': 76,
    'SLICE': 77,
    'CALL': 78,
    'DOT': 79,
    'NUMBER': 80,
    'STRING': 81,
    'LIST': 82,
    'DICT': 83,
    'OPTION': 85,
    'IDENTIFIER': 86,
    'CURLYNAME': 87,
    'ENV': 88,
    'REG': 89,
}


_reverse_map = {}
for node_type_name, node_type in NodeType.items():
    _reverse_map[node_type] = node_type_name


def get_node_type_name(node_type):
    return _reverse_map[node_type]

@@ -1506,16 +1506,35 @@
 T': 83,%0A
+    'NESTING': 84,%0A
     'OPT

Fix NESTING node type missing