sabre/TODO

# Bugs

# Cleanups
- Improve error reporting (See ./util/string_util::highlight_position_in_file)
- Use .peek() instead of .next() for expression parsing
- stdlib moves line of file, which makes error reporting impossible

# Features
- Nested expressions like (1 + (2 * 2))
- Nested arrays like [[1, 2, 3], [1, 2, 3]]
- Break and Continue keywords
- Type inference
- Multi-file support
- Argument overloading

# Long term
- Stable C backend
- LLVM support