internal/registrytest: move from cue/load/internal

Since cmd/cue will want to write integration tests for modules,
which will make use of the same test registry server.

Signed-off-by: Daniel Martí <[email protected]>
Change-Id: I9c5ab22d3de4aa33b4f97173c6a19c6e846e1147
Reviewed-on: https://review.gerrithub.io/c/cue-lang/cue/+/1169975
Reviewed-by: Roger Peppe <[email protected]>
TryBot-Result: CUEcueckoo <[email protected]>

Author: mvdan

cue/load/module_test.go

@@ -6,8 +6,8 @@ import (
 
 	"cuelang.org/go/cue/cuecontext"
 	"cuelang.org/go/cue/errors"
-	"cuelang.org/go/cue/load/internal/registrytest"
 	"cuelang.org/go/internal/cuetxtar"
+	"cuelang.org/go/internal/registrytest"
 )
 
 func TestModuleFetch(t *testing.T) {