zero-knowledge

#306 addresses a term-precedence bug with exponentiation. However, we do not have an end-to-end test case for this.
It should be included, ideally for all operators.

Describe what you want implemented
Remove the bit_iterator macro.

Describe "Why" this is needed
As far as I can see we only invoke the macro once to create BitIterator8 so I don't see the need to have a macro for it. Creating BitIterator8 directly is much clearer.

Describe alternatives you've considered
Leave as is.

Additional context
NA

🐛 Bug Report

using an invalid character in an import name gives no error information

Error Message

Error [EPAR0370000]: ~
    --> D:\Work\leo-playground\src/main.leo:1:12
     |
   1 | import test~.lib.func;

Expected Behavior

it should display the same error message as when an uppercase letter is used:

Error [EPAR0370012]: package names must be lowercase 

Currently, the assembler does not support comments in the source code. We should implement parsing of comments according to the spec described here.