John McCall bb675b6ac9 Add a basic "re-mangler", which turns a parsed ...

demangling tree back into a mangled string.

Also, extend the demangling API in a few obvious
ways, and simplify testing for failure in the
node-returning APIs by having them simply return
null instead of a spurious Failure node.

Also, preserve slightly more information in the
demangling tree.  The goal here is eventually to
always allow a perfect round-trip through the
demangler parse tree.  This patch gets us close,
but we're not quite there yet.

Tests to follow.

Swift SVN r24473

2015-01-16 06:33:08 +00:00

3.3 KiB

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