Instead of having a single, enormous LUT for all CUDA names, let's
have separate ones for different types of entity. We often know
that we're looking at a typename, or a function name, or a macro
name - so we can be more efficient (and resilient to name
collisions) by having smaller lookup tables for each of those
classes of entity).
Here we start that off by having three LUTs:
- Header names
- Type names
- Everything else
Future work could usefully split "everything else" into:
- enum values
- macro names
- function names
- everything else
It's worth noting that the "needs new matcher" todos I delete here
were actually resolved with the previous commit. It no longer
naively searches for things that start with "cu*" - it will find
exactly those things that are present in our lookup tables.
Also, rewrote it as a constant variable instead of a function
that imperatively fills a map. It's shorter, faster the compile,
and (depending on how badly the compiler screws it up) maybe
faster to run.
And, of course, it starts breaking up that giant .cpp file.