Change new List(n) to return fixed length list.

pkg/analyzer-experimental/lib/src/generated/error.dart

Index: pkg/analyzer-experimental/lib/src/generated/error.dart
diff --git a/pkg/analyzer-experimental/lib/src/generated/error.dart b/pkg/analyzer-experimental/lib/src/generated/error.dart
index 17a0466de1ea7040df09e9924bb3eb79db9fc12f..d107954cdc7f63d48e07373ef69babee3c8d5aed 100644
--- a/pkg/analyzer-experimental/lib/src/generated/error.dart
+++ b/pkg/analyzer-experimental/lib/src/generated/error.dart
@@ -120,7 +120,7 @@ class AnalysisError {
   /**
    * An empty array of errors used when no errors are expected.
    */
-  static List<AnalysisError> NO_ERRORS = new List<AnalysisError>.fixedLength(0);
+  static List<AnalysisError> NO_ERRORS = new List<AnalysisError>(0);
   /**
    * The error code associated with the error.
    */
@@ -226,4 +226,4 @@ class AnalysisError {
     builder.add(_message);
     return builder.toString();
   }
-}
+}