Ensure methods on different instantiations are reflectable #73749
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This is something I noticed among the failures in #73547.
See the regression test - since it doesn't trigger AOT or trimming warnings, it needs to "just work". What we need to do to fix this is to force generation of code on things that have a type handle (i.e. the type is reflection-visible) and reflection visible method definitions. We would previously fail at the
Invoke
step since no method body was generated for this instantiation.This is a size regression - it's 4 kB on a hello world - but we need it for correctness.
Cc @dotnet/ilc-contrib