FN_KW "fn"
WHITESPACE " "
IDENT "main"
L_PAREN "("
R_PAREN ")"
WHITESPACE " "
L_CURLY "{"
WHITESPACE "\n    "
IDENT "hello"
L_PAREN "("
STRING "\"world);\n    // a bunch of code was here\n    env(\"FLAGS"
STRING "\", \""
MINUS "-"
IDENT "help" error: unknown literal prefix `help` (note: check for unterminated string literal)
STRING "\")\n}" error: Missing trailing `"` symbol to terminate the string literal