[swift-evolution] [Review] SE-0144: Allow Single Dollar Sign as a Valid Identifier

[Anton Zhilin]

I'd prefer to replace $ with # in closure parameters, plus make $ equal in
rights to other currency symbols.
In C and JS, dollar sign is actually equal in rights to other currency symbols.
Swift is closer to them than to Perl, Shell, PHP, so it makes sense to
follow them here.
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