Roman Levenstein bae290cdab Always put SILFunctions into a zombie list, when they are erased. ...

This removes the function body, but preserves the SILFunction object, which may be still referenced by different kinds of meta-information e.g. debug info for inlined functions, generic specializations information, etc.

Doing this unconditionally simplifies the code and makes it less error-prone to reference SILFunctions from any kind of meta-information. It just works. No need to set any special flags, etc.

2017-08-11 11:14:41 -07:00

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