Fix Issue 17684 - [REG 2.062] static alias this (Part 3)

[JinShil]

Followup to #7055 and #7070

The current implementation does not work for the following:

• && and || expressions
• ! expressions
• return statements

This PR fixes those.

Tests were refactored to reduce redundancy and test for the features above.

[dlang-bot]

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Bugzilla references

Auto-close	Bugzilla	Description
✓	17684	[REG 2.062] static alias this bug or incomplete implementation?

[ibuclaw]

Seems reasonable to me.