[WIP] Fix Block.printCode functionality

[Copilot]

Coding agent has begun work on Difference between Term.print and Block.printCode functionality and will update this pull request as work progresses.

Original prompt

why Term.print work but Block.printCode doesn't work?

The user has attached the following files from their workspace:

• hkmc2/shared/src/test/mlscript-compile/Term.mls
• hkmc2/shared/src/test/mlscript-compile/Term.mls

TITLE: Difference between Term.print and Block.printCode functionality

Created from VS Code via the GitHub Pull Request extension.

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