$ gotip version
go version devel go1.18-a0adf91d85 Mon Aug 16 16:58:24 2021 +0000 linux/amd64

package main

func f[_ any]() int {
	var a []int
	_ = func() int {
		return func() int {
			return 0
		}()
	}()
	return a[func() int {
		return 0
	}()]
}

func main() {
	f[int]()
}

$ gotip tool compile -G=3 crash.go

crash.go:16:2: internal compiler error: .dict already has a location

goroutine 1 [running]:
runtime/debug.Stack()
	/home/alberto/go/src/runtime/debug/stack.go:24 +0x65
cmd/compile/internal/base.FatalfAt({0x401d40, 0xc0}, {0xcfa973, 0x19}, {0xc000115760, 0x1, 0x1})
	/home/alberto/go/src/cmd/compile/internal/base/print.go:227 +0x154
cmd/compile/internal/base.Fatalf(...)
	/home/alberto/go/src/cmd/compile/internal/base/print.go:196
cmd/compile/internal/escape.(*escape).newLoc(0xc000115880, {0xe5fe98, 0xc000401d40}, 0x0)
	/home/alberto/go/src/cmd/compile/internal/escape/graph.go:246 +0x54e
...