Convert quick fix support to use AnalysisDriver

pkg/analysis_server/lib/plugin/edit/fix/fix_core.dart

Index: pkg/analysis_server/lib/plugin/edit/fix/fix_core.dart
diff --git a/pkg/analysis_server/lib/plugin/edit/fix/fix_core.dart b/pkg/analysis_server/lib/plugin/edit/fix/fix_core.dart
index 12ec326ad2a288a3a54f795623ef65cebd6bad8d..728875a9bd04d5cfa684bebbf629723acbd7c7ee 100644
--- a/pkg/analysis_server/lib/plugin/edit/fix/fix_core.dart
+++ b/pkg/analysis_server/lib/plugin/edit/fix/fix_core.dart
@@ -6,7 +6,7 @@ import 'dart:async';
 
 import 'package:analyzer/error/error.dart';
 import 'package:analyzer/file_system/file_system.dart';
-import 'package:analyzer/src/generated/engine.dart';
+import 'package:analyzer/src/dart/analysis/driver.dart';
 import 'package:analyzer_plugin/protocol/protocol_common.dart'
     show SourceChange;
 
@@ -57,9 +57,9 @@ class Fix {
  */
 abstract class FixContext {
   /**
-   * The [AnalysisContext] to get fixes in.
+   * The analysis driver used to access analysis results.
    */
-  AnalysisContext get analysisContext;
+  AnalysisDriver get analysisDriver;
 
   /**
    * The error to fix, should be reported in the given [analysisContext].