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

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

 // This code was auto-generated, is not intended to be edited, and is subject to
 // significant change. Please see the README file for more information.
 
 library engine.ast;
 
 import 'dart:collection';
 import 'java_core.dart';
 import 'java_engine.dart';
 import 'error.dart';
 import 'scanner.dart';
@@ skipping 2390 matching lines @@
    * been resolved
    */
   List<AnalysisError> get errors {
     List<AnalysisError> parserErrors = parsingErrors;
     List<AnalysisError> resolverErrors = resolutionErrors;
     if (resolverErrors.length == 0) {
       return parserErrors;
     } else if (parserErrors.length == 0) {
       return resolverErrors;
     } else {
-      List<AnalysisError> allErrors = new List<AnalysisError>.fixedLength(parserErrors.length + resolverErrors.length);
+      List<AnalysisError> allErrors = new List<AnalysisError>(parserErrors.length + resolverErrors.length);
       System.arraycopy(parserErrors, 0, allErrors, 0, parserErrors.length);
       System.arraycopy(resolverErrors, 0, allErrors, parserErrors.length, resolverErrors.length);
       return allErrors;
     }
   }
   int get length {
     Token endToken3 = endToken;
     if (endToken3 == null) {
       return 0;
     }
@@ skipping 2362 matching lines @@
   FormalParameterList({Token leftParenthesis, List<FormalParameter> parameters, Token leftDelimiter, Token rightDelimiter, Token rightParenthesis}) : this.full(leftParenthesis, parameters, leftDelimiter, rightDelimiter, rightParenthesis);
   accept(ASTVisitor visitor) => visitor.visitFormalParameterList(this);
   Token get beginToken => _leftParenthesis;
   /**
    * Return an array containing the elements representing the parameters in this list. The array
    * will contain {@code null}s if the parameters in this list have not been resolved.
    * @return the elements representing the parameters in this list
    */
   List<ParameterElement> get elements {
     int count = _parameters.length;
-    List<ParameterElement> types = new List<ParameterElement>.fixedLength(count);
+    List<ParameterElement> types = new List<ParameterElement>(count);
     for (int i = 0; i < count; i++) {
       types[i] = _parameters[i].element;
     }
     return types;
   }
   Token get endToken => _rightParenthesis;
   /**
    * Return the left square bracket ('[') or left curly brace ('{') introducing the optional
    * parameters.
    * @return the left square bracket ('[') or left curly brace ('{') introducing the optional
@@ skipping 7674 matching lines @@
     return elements[elements.length - 1].endToken;
   }
   /**
    * Return the node that is the parent of each of the elements in the list.
    * @return the node that is the parent of each of the elements in the list
    */
   ASTNode getOwner() {
     return owner;
   }
 }