DSSSL extended lambda lists are unhygienic

[syn]

There are a few hygiene problems with the DSSSL extended lambda lists. I was able to fix one but am stuck with the rest of them which seems to be related to macro-alias not resolving to the correct symbol name. Attached is a patch which adds a test case as well as the fix I was able to make.

[ckeen]

I have committed the ##core#quote part of this patch to master as commit c75cc04a5e6cf570b83ab4df40834583aa5ed369, the issue remains open as macro-alias does not seem to rename macros at all