Add initial Query generation, correctness checking and index generation.

go/src/infra/gae/libs/wrapper/memory/key.go

Index: go/src/infra/gae/libs/wrapper/memory/key.go
diff --git a/go/src/infra/gae/libs/wrapper/memory/key.go b/go/src/infra/gae/libs/wrapper/memory/key.go
index 780efa99fd7a1f9391dd46e388171f56473790bf..fa9d656af42b91345031360d4a263e8d1411d90e 100644
--- a/go/src/infra/gae/libs/wrapper/memory/key.go
+++ b/go/src/infra/gae/libs/wrapper/memory/key.go
@@ -104,8 +104,8 @@ func keyBytes(nso nsOption, k *datastore.Key) []byte {
 	return buf.Bytes()
 }
 
-func keyFromByteString(nso nsOption, d string) (*datastore.Key, error) {
-	return readKey(bytes.NewBufferString(d), nso)
+func keyFromByteString(nso nsOption, d string, ns string) (*datastore.Key, error) {
+	return readKey(bytes.NewBufferString(d), nso, ns)
 }
 
 func writeKey(buf *bytes.Buffer, nso nsOption, k *datastore.Key) {
@@ -124,8 +124,8 @@ func writeKey(buf *bytes.Buffer, nso nsOption, k *datastore.Key) {
 	}
 }
 
-func readKey(buf *bytes.Buffer, nso nsOption) (*datastore.Key, error) {
-	namespace := ""
+func readKey(buf *bytes.Buffer, nso nsOption, ns string) (*datastore.Key, error) {
+	namespace := ns
 	if nso == withNS {
 		err := error(nil)
 		if namespace, err = readString(buf); err != nil {