compiler: implement method-set based AssignableTo and Implements (#5304)

* reflect: implement method-set based AssignableTo and Implements

Based on the design from #4376 by aykevl.
Fixes #4277, fixes #3580.

Co-authored-by: Ayke van Laethem <aykevanlaethem@gmail.com>

* builder: update expected binary sizes for reflect changes

* Make interface checks similar to invoke, allowing typeImplementsMethodSet and method info to be dropped when reflect is not present

* Add more tests that BigGo reflect tests

* Even more pruning

* Add go/token and net/url to passing tests

* Prune even further, I am less happy with this, though

* Update size test now that we are smaller

* Skip some tests

* elide method lists

* format, oops

* fix tests

* Add a panic, pull out constant to keep in sync

* Add debug info

* Remove code that was leftover from a previous refactor

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Co-authored-by: Ayke van Laethem <aykevanlaethem@gmail.com>

transform/optimizer.go

@@ -65,7 +65,6 @@ func Optimize(mod llvm.Module, config *compileopts.Config) []error {
 
 		// Run TinyGo-specific optimization passes.
 		OptimizeStringToBytes(mod)
-		OptimizeReflectImplements(mod)
 		maxStackSize := config.MaxStackAlloc()
 		OptimizeAllocs(mod, nil, maxStackSize, nil)
 		err = LowerInterfaces(mod, config)