Prep code for live coding.
Add more tests for IfNode#eval.
Remove a test.
Implement the lexer.
Handle comments inside the lexer.
Implement the parser.
Add if rule in parser.
Bootstrap the runtime.
Compute 1 + 2 from the runtime API.
Allow comparing RObjects.
Implement the interpreter.
Implement IfNode#eval.
Uncomment while test.
Fix error when defining methods.
Implement while.
Compile our language to JS.
Add a few notes.
Compile the if to JS.
Add note about node / expression.
Implement the bytecode compiler.