VReplication: Handle comment statement type in vstreamer

[rohit-nayak-ps]

Closes #7089

VStreamer was treating StmtComment as an unsupported statement. This PR sends an OTHER event for comments.

Signed-off-by: Rohit Nayak rohit@planetscale.com

[deepthi]

This seems like the obvious fix, but I'm puzzled as to why the error message said statement type UNKNOWN. If Preview is returning the right statement type, it should have been statement type COMMENT.

[rohit-nayak-ps]

This seems like the obvious fix, but I'm puzzled as to why the error message said statement type UNKNOWN. If Preview is returning the right statement type, it should have been statement type COMMENT.

Yeah, I had the same confusion and started by adding a specific test for that comment in analyzer thinking it was a problem with the parser. I then found that the reason for the UNKNOWN type is that the comment is not an '''iStatement''': it never makes it to the AST. So a String (or %v) rendering of that StatementType ends up being UNKNOWN, though the Preview does actually return StmtComment. At least that was my interpretation and I didn't dig deeper since the simple fix worked!