Fix warnings.

package.yaml

@@ -1,7 +1,7 @@
 name: cli
 description: Tools, like an argument parser, to create command-line applications.
 environment:
-  sdk: ^2.0.0-alpha.144
+  sdk: ^2.0.0-alpha.161
 dependencies:
   fs:
     url: github.com/toitlang/pkg-fs

src/cache.toit

@@ -12,7 +12,6 @@ import host.file
 import host.directory
 import io
 import system
-import uuid
 
 import .utils_
 

src/cli.toit

@@ -2,7 +2,7 @@
 // Use of this source code is governed by an MIT-style license that can be
 // found in the package's LICENSE file.
 
-import uuid
+import uuid show Uuid
 import system
 
 import .cache
@@ -816,7 +816,7 @@ class OptionPatterns extends Option:
 A Uuid option.
 */
 class OptionUuid extends Option:
-  default/uuid.Uuid?
+  default/Uuid?
 
   /**
   Creates a new Uuid option.
@@ -845,8 +845,8 @@ class OptionUuid extends Option:
 
   type -> string: return "uuid"
 
-  parse str/string --for-help-example/bool=false -> uuid.Uuid:
-    return uuid.parse str --on-error=:
+  parse str/string --for-help-example/bool=false -> Uuid:
+    return Uuid.parse str --on-error=:
       throw "Invalid value for option '$name': '$str'. Expected a UUID."
 
 

tests/options_test.toit

@@ -4,7 +4,7 @@
 
 import cli
 import expect show *
-import uuid
+import uuid show Uuid
 
 main:
   test-string
@@ -131,14 +131,14 @@ test-uuid:
   expect-null option.default
   expect-equals "uuid" option.type
 
-  option = cli.OptionUuid "uuid" --default=uuid.NIL
-  expect-equals uuid.NIL option.default
+  option = cli.OptionUuid "uuid" --default=Uuid.NIL
+  expect-equals Uuid.NIL option.default
 
   value := option.parse "00000000-0000-0000-0000-000000000000"
-  expect-equals uuid.NIL value
+  expect-equals Uuid.NIL value
 
   value = option.parse "00000000-0000-0000-0000-000000000001"
-  expect-equals (uuid.parse "00000000-0000-0000-0000-000000000001") value
+  expect-equals (Uuid.parse "00000000-0000-0000-0000-000000000001") value
 
   expect-throw "Invalid value for option 'uuid': 'foo'. Expected a UUID.":
     option.parse "foo"