Location order on packages should consider evidence annotations when sorting (#3720)

* fix: sorting locations should consider pkg evidence

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

* simplify location test options for comparison

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

---------

Signed-off-by: Alex Goodman <wagoodman@users.noreply.github.com>

internal/cmptest/set.go

@@ -0,0 +1,24 @@
+package cmptest
+
+type slicer[T any] interface {
+	ToSlice() []T
+}
+
+func buildSetComparer[T any, S slicer[T]](l func(x, y T) bool) func(x, y S) bool {
+	return func(x, y S) bool {
+		xs := x.ToSlice()
+		ys := y.ToSlice()
+
+		if len(xs) != len(ys) {
+			return false
+		}
+		for i, xe := range xs {
+			ye := ys[i]
+			if !l(xe, ye) {
+				return false
+			}
+		}
+
+		return true
+	}
+}