Module name mangling for #import

Motivation and Context

The internal name mangling for imported modules was incomplete and non-injective.

Description

The new name mangling scheme is now:

• _ -> u (u for underscore)
• . -> p (p for period)
• : -> c (c for colon)
• \ -> b (b for backslash)
• / -> s (s for slash)
• @ -> a (a for at)
• • -> d (d for dash)
• ( -> l (l for left)
• ) -> r (r for right)

Component

• compiler
• website
• webide
• vscode-plugin
• debugger

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• Performance improvement (non-breaking change that improves performance)
• None (change with no changelog)

Changelog

The internal name mangling for imported modules was incomplete and non-injective.

Checklist:

• If a new syntax has been introduced, put a message on slack ligo-lsp
• Changes follow the existing coding style (use dune @fmt to check).
• Tests for the changes have been added (for bug fixes / feature).
• Documentation has been updated.
• Changelog description has been added (if appropriate).
• Start titles under ## Changelog section with #### (if appropriate).
• There is no image or uploaded file in changelog
• Examples in changed behaviour have been added to the changelog (for breaking change / feature).