Unresolved conflict for symbol sequence:

  identifier  identifier  •  '{'  …

Possible interpretations:

  1:  identifier  (expression  identifier)  •  '{'  …
  2:  identifier  (function_call  identifier  •  block)  (precedence: 0, associativity: Right)

Possible resolutions:

  1:  Specify a higher precedence in `function_call` than in the other rules.
  2:  Specify a higher precedence in `expression` than in the other rules.
  3:  Specify a left or right associativity in `expression`
  4:  Add a conflict for these rules: `expression`, `function_call`