less references to `\rho`

[yegor256]

see #3481

removed a bit of redundant ^.

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PR-Codex overview

This PR focuses on removing the use of the ^ operator in various eo files, which indicates accessing the parent scope. The changes streamline code by directly referencing the properties and methods without the need for the parent context.

Detailed summary

• In while.eo, removed ^ from body and condition references.
• In tuple.eo, removed ^ from head.length and index comparisons.
• In i16.eo, removed ^ from multiple comparisons and arithmetic operations (lt, lte, gt, gte, times, plus, minus, div).
• Adjusted error handling message to remove ^ in the error message formatting.

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[yegor256]

@maxonfjvipon what do you think? Looks like we overuse the ^. prefix. It can be omitted in many situations (but not all!)

[0crat]

@yegor256 Hey there! 👋 Thanks for your contribution! You've earned +4 points this time. Here's the breakdown: +4 base points, -4 because there were only a few comments (we like to see at least 6!), and +4 to keep you motivated. Remember, more hits-of-code and active code reviews can boost your points next time. Keep the contributions coming! Your current balance stands at -46. Let's see if we can bump that up! 💪

[0crat]

@maxonfjvipon Great job on the review! 🌟 You've earned +4 points: +4 base, -10 for minimal comments, but +10 bonus to recognize your effort. Your current balance is +16. Keep up the good work and aim for more detailed feedback next time!