expression: fix compare string with hex string literal makes tidb panic

[xiongjiwei]

What problem does this PR solve?

Issue Number:
close #23507
close #23506

Problem Summary:

What is changed and how it works?

if the function's arguments are constant and string type, we should check its validity, so that this pr will eval string expression at getfunction phase if the argument is constant and string type and some error arise earlier, see the changed tests.

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

make illegal collation check more strictness

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• xhebox

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[xiongjiwei]

/run-build

[xiongjiwei]

/hold

[ti-chi-bot]

@xiongjiwei: PR needs rebase.

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