Parsing variable with keywords in object

[josh-barker]

Hi,

I've found an issue when parsing key words:

• if
• in
• for

main.tf

variable "if" {
  description = "this is fine"
}

variable "object" {
  description = "this fails"

  type = object({
    if = string
    in = string
    for = string
    action = string
  })
}

main.py

import hcl2
with open('main.tf', 'r') as file:
    dict = hcl2.load(file)

print(dict)

python main.py
Traceback (most recent call last):
  File "/Users/josh/.local/share/virtualenvs/empty-locals-s2Z1l-Fh/lib/python3.9/site-packages/lark/parsers/lalr_parser.py", line 59, in get_action
    return states[state][token.type]
KeyError: 'IF'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/Users/josh/github/bridgecrew.io/replication-cases/variable-named-if/main.py", line 3, in <module>
    dict = hcl2.load(file)
  File "/Users/josh/.local/share/virtualenvs/empty-locals-s2Z1l-Fh/lib/python3.9/site-packages/hcl2/api.py", line 9, in load
    return loads(file.read())
  File "/Users/josh/.local/share/virtualenvs/empty-locals-s2Z1l-Fh/lib/python3.9/site-packages/hcl2/api.py", line 18, in loads
    return hcl2.parse(text + "\n")
  File "/Users/josh/.local/share/virtualenvs/empty-locals-s2Z1l-Fh/lib/python3.9/site-packages/lark/lark.py", line 464, in parse
    return self.parser.parse(text, start=start)
  File "/Users/josh/.local/share/virtualenvs/empty-locals-s2Z1l-Fh/lib/python3.9/site-packages/lark/parser_frontends.py", line 115, in parse
    return self._parse(token_stream, start)
  File "/Users/josh/.local/share/virtualenvs/empty-locals-s2Z1l-Fh/lib/python3.9/site-packages/lark/parser_frontends.py", line 63, in _parse
    return self.parser.parse(input, start, *args)
  File "/Users/josh/.local/share/virtualenvs/empty-locals-s2Z1l-Fh/lib/python3.9/site-packages/lark/parsers/lalr_parser.py", line 35, in parse
    return self.parser.parse(*args)
  File "/Users/josh/.local/share/virtualenvs/empty-locals-s2Z1l-Fh/lib/python3.9/site-packages/lark/parsers/lalr_parser.py", line 88, in parse
    action, arg = get_action(token)
  File "/Users/josh/.local/share/virtualenvs/empty-locals-s2Z1l-Fh/lib/python3.9/site-packages/lark/parsers/lalr_parser.py", line 66, in get_action
    raise UnexpectedToken(token, expected, state=state, puppet=puppet)
lark.exceptions.UnexpectedToken: Unexpected token Token('IF', 'if') at line 9, column 5.
Expected one of:
	* __ANON_11
	* TRUE
	* LPAR
	* LSQB
	* __ANON_3
	* MINUS
	* STRING_LIT
	* __ANON_10
	* RBRACE
	* NULL
	* DECIMAL
	* BANG
	* LBRACE
	* FOR
	* FALSE