John McCall 750d397909 Substantially rework how IRGen handles function pointers. ...

The goals here are four-fold:
  - provide cleaner internal abstractions
  - avoid IR bloat from extra bitcasts
  - avoid recomputing function-type lowering information
  - allow more information to be propagated from the function
    access site (e.g. class_method) to the call site

Use this framework immediately for class and protocol methods.

2017-07-20 14:33:18 -04:00

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