add optional importUri to completion suggestion

pkg/analysis_server/test/integration/protocol_matchers.dart

Index: pkg/analysis_server/test/integration/protocol_matchers.dart
diff --git a/pkg/analysis_server/test/integration/protocol_matchers.dart b/pkg/analysis_server/test/integration/protocol_matchers.dart
index 83314f9fc9bfee131c1ea9afd57182642b2ca5b9..a8b3bd00af7c18d9bae50931b0bf3954144cb77b 100644
--- a/pkg/analysis_server/test/integration/protocol_matchers.dart
+++ b/pkg/analysis_server/test/integration/protocol_matchers.dart
@@ -1120,6 +1120,7 @@ final Matcher isCompletionId = isString;
  *   "hasNamedParameters": optional bool
  *   "parameterName": optional String
  *   "parameterType": optional String
+ *   "importUri": optional String
  * }
  */
 final Matcher isCompletionSuggestion = new LazyMatcher(() => new MatchesJsonObject(
@@ -1142,7 +1143,8 @@ final Matcher isCompletionSuggestion = new LazyMatcher(() => new MatchesJsonObje
     "requiredParameterCount": isInt,
     "hasNamedParameters": isBool,
     "parameterName": isString,
-    "parameterType": isString
+    "parameterType": isString,
+    "importUri": isString
   }));
 
 /**