Neat 0.2.1: Advent of Lexing

When building Neat, the new lexer gives a 60ms speedup: 1.07s to 1.01s. Not the most spectacular, but hopefully more gains later.

I've also been doing the Advent of Code '22 puzzles to shake out bugs. Language is holding up so far; no show-stoppers.

• Change operator precedence to raise shift operators
  • It is now & ^ <<>> | */ +- <> && || if
• Add character literals: 'a'
• The -release switch disables array bounds checking.
• The -run switch executes the built binary.
  • Command line arguments after -- are passed to the program.
• Add std.algorithm.splitter
• Add formatting for chars, named tuples, vectors, enums
• Add hashmap.remove, hashmap.clear
• .() now parses as a tuple, removing the need for .(())
• with() { } now supports types, such as enums
• value.case(...) now supports non-sumtype value
• Ret foo() => value is equivalent to Ret foo() return value;
• Support bool || bottom.
• a ~= b; now detects if a is non-mutable.
• Fix long literals. Numbers that are too big for int are now automatically typed as long.
• The input text is now lexed before parsing, providing a marginal speedup.