[release/9.0] Tweak Invariant IndexOf logic #108728
Merged
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Backport of #108709 to release/9.0
/cc @tarekgh @MihaZupan
Customer Impact
This is accumulated change for previous change #108562. To address the perf regression occurred with the original change.
Regression
[If yes, specify when the regression was introduced. Provide the PR or commit if known.]
Testing
Manually measured the perf and collected the benchmark. Passed all regression tests including the tests added with the original change.
Risk
Low, the change here is really moving the declaration of a span variable inside the method to the bottom of the method. No actual logic or behavior change.