had to let go of crystal (sniff) as the name was taken

lib/ast/module_expression.rb

@@ -7,7 +7,7 @@ module Ast
       context.current_class = clazz
       expressions.each do |expression|
         # check if it's a function definition and add
-        # if not, execute it, but that does means we should be in crystal (executable), not ruby. ie throw an error for now
+        # if not, execute it, but that does means we should be in sapphire (executable), not ruby. ie throw an error for now
         raise "only functions for now #{expression.inspect}" unless expression.is_a? Ast::FunctionExpression
         puts "compiling expression #{expression}"
         expression_value = expression.compile(context )