MODULE@0..12
  VAR_DECL@0..11
    IDENT@0..3 "let"
    WHITESPACE@3..4 " "
    DECLARATOR@4..11
      SINGLE_PATTERN@4..5
        NAME@4..5
          IDENT@4..5 "b"
      WHITESPACE@5..6 " "
      EQ@6..7 "="
      WHITESPACE@7..8 " "
      OBJECT_EXPR@8..11
        L_CURLY@8..9 "{"
        LITERAL_PROP@9..10
          LITERAL@9..10
            NUMBER@9..10 "5"
        R_CURLY@10..11 "}"
  WHITESPACE@11..12 "\n"
--
error[SyntaxError]: expected `:` but instead found `}`
  ┌─ object_expr_non_ident_literal_prop.js:1:11
  │
1 │ let b = {5}
  │           ^ unexpected

--
error[SyntaxError]: Expected an expression, but found none
  ┌─ object_expr_non_ident_literal_prop.js:1:11
  │
1 │ let b = {5}
  │           ^ Expected an expression here

--
let b = {5}