[PATCH v4 0/1] MR10317: vbscript: Allow Not operator as operand of comparison expressions.

[Francis De Brabandere (＠francisdb)]

The Not operator was only reachable from the NotExpression grammar
rule, which sat above EqualityExpression in the precedence chain.
This meant expressions like "a <> Not b" caused a syntax error
because the right-hand side of a comparison could not contain Not.

Adding Not as a unary operator in SignExpression (alongside unary
minus and plus) allows it to be used within comparison operands.

Wine-Bug: https://bugs.winehq.org/show_bug.cgi?id=55093

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  v4: vbscript: Allow Not operator as operand of comparison expressions.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/10317