Error with multi-element records

[ajhager]

It seems like {a = a, b = b} should parse to

Record [("a", (Variable ["a"])), ("b", (Variable ["b"]))]

but it causes the errors

failed to parse: {a = a, b = b} at position 0 with errors: ["expected \"let\"","expected \"case\"","expected \"if\"","expected \"\\\\\"","expected '\\''","expected \"\\\"\\\"\\\"\"","expected \"\\\"\"","expected a float","expected an integer","expected \"_\"","expected a lowercase character","expected an uppercase character","expected \"_\"","expected a
lowercase character","expected an uppercase character","expected \"[\"","expected \"[\"","expected \"}\"","expected \"(\""]

[wende]

Fixed in #19