sysvar: debug expressions

[TomShawn]

What is changed, added or deleted? (Required)

sysvar: debug expressions

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[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• shichun-0415

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[shichun-0415]

LGTM

[shichun-0415]

/verify

[TomShawn]

/merge

[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Commit hash: 0abda17

[ti-chi-bot]

In response to a cherrypick label: new pull request created: #10055.