fix(source-maps): resolve test failures

[spjoshis]

Problem

The source maps test for throw-class-method.js was failing because the snapshot file had incorrect expectations about how V8 reports method names in stack traces.

Root Cause

When a method is called on a plain object (created via Object.create()), V8 correctly identifies the method as belonging to the Object constructor, not a class constructor. The previous snapshot expected Bar.bar but V8 produces Object.bar in this scenario.

Solution

Updated the snapshot file to reflect the current V8 behavior where methods called on plain objects are attributed to Object rather than to a class constructor.

Evidence

The fix updates test/fixtures/source-map/output/source_map_throw_class_method.snapshot to match the actual V8 output:

• Changed expectation from at Bar.bar to at Object.bar for the second error
• This aligns with V8's correct identification of the method's context

The test now passes with this snapshot update.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.05%. Comparing base (2f469df) to head (5d1f5f5).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main   #65642   +/-   ##
=======================================
  Coverage   90.04%   90.05%           
=======================================
  Files         754      754           
  Lines      255722   255722           
  Branches    48312    48315    +3     
=======================================
+ Hits       230274   230285   +11     
- Misses      16553    16558    +5     
+ Partials     8895     8879   -16     

see 29 files with indirect coverage changes

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