Fix AvailableSuggestionSetsTest on Windows.

R=brianwilkerson@google.com

Change-Id: Ief007dd6ca0431cc69181603e19f88717910e9ca
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/177681
Reviewed-by: Konstantin Shcheglov <scheglov@google.com>
Commit-Queue: Konstantin Shcheglov <scheglov@google.com>
diff --git a/pkg/analysis_server/test/src/domains/completion/available_suggestion_sets_test.dart b/pkg/analysis_server/test/src/domains/completion/available_suggestion_sets_test.dart
index d168cee..3e2a88f 100644
--- a/pkg/analysis_server/test/src/domains/completion/available_suggestion_sets_test.dart
+++ b/pkg/analysis_server/test/src/domains/completion/available_suggestion_sets_test.dart
@@ -135,7 +135,7 @@
     "kind": "CLASS",
     "name": "A",
     "location": {
-      "file": "/home/test/lib/a.dart",
+      "file": ${jsonOfPath(a_path)},
       "offset": 21,
       "length": 0,
       "startLine": 2,
@@ -160,7 +160,7 @@
     "kind": "CLASS",
     "name": "B",
     "location": {
-      "file": "/home/test/lib/b.dart",
+      "file": ${jsonOfPath(b_path)},
       "offset": 24,
       "length": 0,
       "startLine": 2,