⚡️ Speed up function baseline_establishment_failed_error by 15% in PR #695 (enhancement/codeflash-errors)

The key optimization is replacing `**locals()` with an explicit keyword argument `failure_msg=failure_msg`. 

The `**locals()` call forces Python to:
1. Create a dictionary containing all local variables in the function scope
2. Unpack that dictionary as keyword arguments to the constructor

Since this function only has one local variable (`failure_msg`), the explicit approach avoids the overhead of dictionary creation and unpacking. The line profiler shows the `**locals()` line took 12.6% of total execution time (926544ns per hit) in the original vs 10.2% (686248ns per hit) for the direct assignment - a 26% reduction in that line's cost.

This optimization is particularly effective for:
- **Frequent function calls** - as shown in the large-scale tests where 1000 calls saw 13.5-16.1% speedups
- **Simple error creation patterns** - all test cases showed 21-37% improvements
- **Memory-constrained scenarios** - eliminates unnecessary dictionary allocation

The 15% overall speedup comes from eliminating Python's introspection overhead while maintaining identical functionality and error object structure.

Author: codeflash-ai[bot]

codeflash/errors/errors.py

@@ -39,7 +39,7 @@ def baseline_establishment_failed_error(failure_msg: str) -> CodeflashError:
     return CodeflashError(
         "BASELINE_ESTABLISHMENT_FAILED_ERROR",
         "Failed to establish a baseline for the original code. {failure_msg}",
-        **locals(),
+        failure_msg=failure_msg,
     )