[BugFix] [Branch-2.3] Older versions of Analyzer disable constant folding functions for smaller int types

[HangyuanLiu]

What type of PR is this：

• BugFix
• Feature
• Enhancement
• Refactor
• UT
• Doc
• Tool

Which issues of this PR fixes ：

Fixes #13648 #4691

Problem Summary(Required) ：

// Because branch 2.3 introduced a more refined four arithmetic type deduction in #4691,
// but there are some non-Query Statements that also require constant expression calculation.
// For example, SetStatement still uses the old Analyzer and the old version of constant calculation
// in 2.3, and the old version of the constant calculation does not support low-precision INT,
// so the old version of the constant calculation is adapted here.

Checklist:

• I have added test cases for my bug fix or my new feature
• This pr will affect users' behaviors
• This pr needs user documentation (for new or modified features or behaviors)
  • I have added documentation for my new feature or new function

[Seaven]

why don't modify SET_Stmt analyze result type?

[HangyuanLiu]

why don't modify SET_Stmt analyze result type?

Because it is difficult to accurately deduce which expressions can be simplified by constants and which cannot in the analyze of SetVar