TSQL: Allow DECLARE/SET statements to parse using ExpressionStatement #1649
+83
−73
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TSQL DECLARE and SET statements can have full expressions as the value to be assigned, but the parsers for each did not cover all possibilities. I have simplified both of these by replacing the right side of the assignment statement with ExpressionStatement.
I'm not sure why this wasn't the situation already, so I may be missing something, but I found no test cases or documentation to explain the decision. I have update our test cases to cover a couple valid scenarios which were previously unparseable. Two additional test cases had their YAML updated slightly.