[Issue 16513] Speed up TemplateInstance.findExistingInstance, hash by mangling

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=16513

--- Comment #2 from uplink.coder at googlemail.com ---
Hash collisions will happen!
We need a way to speed up those equals compares in rootObject.
I'll look if I can find a good way to gradually remove the virtual calls. 

  IsVariable!(Simulated_Object_966)
  IsMemberVariable!(Simulated_Object_975)
  isSomeFunction!(Simulated_Object_573)

Those SHOULD produce the same hash they work on the same types!
I am of the impression that template-inlining can help here.

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