fix: Macro segmentation faults

[I-A-S]

What does this PR do?

• Code changes

Fixes the occurrence of segmentation faults under certain macro inputs as indicated by issues #3830, #6014 and #6704. Bun will now display the relevant error instead of crashing with a segmentation fault.

How did you verify your code works?

• I checked the lifetime of memory allocated to verify it's (1) freed and (2) only freed when it should be
• I or my editor ran zig fmt on the changed files

[Jarred-Sumner]

A test would be great. I think we should merge this regardless, but it'd be easy for this to regress in the future without a test.

[I-A-S]

A test would be great. I think we should merge this regardless, but it'd be easy for this to regress in the future without a test.

Agreed I'll add a test.

[I-A-S]

Added a test

[Jarred-Sumner]

Thank you