*: use std slices to replace exp/slices

[hawkingrei]

What problem does this PR solve?

Issue Number: ref #45933

Problem Summary:

What is changed and how it works?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

None

[codecov]

Codecov Report

Merging #46020 (e1c108f) into master (f680a5d) will decrease coverage by 2.0878%.
Report is 2 commits behind head on master.
The diff coverage is 72.2222%.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #46020        +/-   ##
================================================
- Coverage   74.7635%   72.6757%   -2.0878%     
================================================
  Files          1293       1300         +7     
  Lines        398059     399766      +1707     
================================================
- Hits         297603     290533      -7070     
- Misses        81102      90765      +9663     
+ Partials      19354      18468       -886     

Flag	Coverage Δ
integration	25.5811% <22.2222%> (-20.6821%)	⬇️
unit	73.3525% <72.2222%> (+0.0038%)	⬆️

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
dumpling	54.0444% <ø> (ø)
parser	85.0548% <ø> (ø)
br	47.6072% <50.0000%> (-16.8844%)	⬇️

[hawkingrei]

/test all

[hawkingrei]

/test all

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: Defined2014, lance6716

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2023-08-13 03:51:13.449794747 +0000 UTC m=+430237.998810731: ☑️ agreed by lance6716.
• 2023-08-14 03:13:43.091878411 +0000 UTC m=+514387.640894396: ☑️ agreed by Defined2014.