MODULE@0..14
  EXPR_STMT@0..6
    ARROW_EXPR@0..6
      PARAMETER_LIST@0..4
        L_PAREN@0..1 "("
        ERROR@1..2
          NUMBER@1..2 "5"
        WHITESPACE@2..3 " "
        ERROR@3..4
          PLUS@3..4 "+"
      WHITESPACE@4..5 " "
      NUMBER@5..6 "5"
  ERROR@6..7
    R_PAREN@6..7 ")"
  WHITESPACE@7..8 " "
  ERROR@8..10
    FAT_ARROW@8..10 "=>"
  WHITESPACE@10..11 " "
  BLOCK_STMT@11..13
    L_CURLY@11..12 "{"
    R_CURLY@12..13 "}"
  WHITESPACE@13..14 "\n"
--
error[SyntaxError]: Expected an identifier or pattern, but found none
  ┌─ paren_or_arrow_expr_invalid_params.js:1:2
  │
1 │ (5 + 5) => {}
  │  ^

--
error[SyntaxError]: expected `')'` but instead found `5`
  ┌─ paren_or_arrow_expr_invalid_params.js:1:6
  │
1 │ (5 + 5) => {}
  │      ^ unexpected

--
error[SyntaxError]: Expected an expression, but found none
  ┌─ paren_or_arrow_expr_invalid_params.js:1:7
  │
1 │ (5 + 5) => {}
  │       ^ Expected an expression here

--
error[SyntaxError]: Expected a semicolon or an implicit semicolon after a statement, but found none
  ┌─ paren_or_arrow_expr_invalid_params.js:1:7
  │
1 │ (5 + 5) => {}
  │ ------^
  │ │     │
  │ │     An explicit or implicit semicolon is expected here...
  │ ...Which is required to end this statement

--
error[SyntaxError]: Expected a statement or declaration, but found none
  ┌─ paren_or_arrow_expr_invalid_params.js:1:7
  │
1 │ (5 + 5) => {}
  │       ^ Expected a statement or declaration here

--
error[SyntaxError]: Expected a statement or declaration, but found none
  ┌─ paren_or_arrow_expr_invalid_params.js:1:9
  │
1 │ (5 + 5) => {}
  │         ^^ Expected a statement or declaration here

--
(5 + 5) => {}