[SPARK-51987][SPARK-52235][SQL][FOLLOW-UP] Add ANSI mode check for new tests

### What changes were proposed in this pull request?
Fix non-ANSI test breakage as per #50959 (review)

### Why are the changes needed?
Many V2 Expressions are only converted successfully in ANSI mode, so this test for V2 Expression only makes sense in that mode.

### Does this PR introduce _any_ user-facing change?
No, test only

### How was this patch tested?
Run test in NON-ANSI mode

### Was this patch authored or co-authored using generative AI tooling?
No

Closes #51092 from szehon-ho/SPARK-52235-follow.

Lead-authored-by: Szehon Ho <szehon.apache@gmail.com>
Co-authored-by: Wenchen Fan <wenchen@databricks.com>
Signed-off-by: Wenchen Fan <wenchen@databricks.com>

Author: szehon-ho