Add support for accessing field formal parameters in the initializer list of constructors

pkg/analyzer_cli/lib/src/driver.dart

Index: pkg/analyzer_cli/lib/src/driver.dart
diff --git a/pkg/analyzer_cli/lib/src/driver.dart b/pkg/analyzer_cli/lib/src/driver.dart
index b51a67eff59d80a88e7fe15ed84dab71243fe5c0..b16b78780bdbc9b1e9cbaba98615834fd4fcbde4 100644
--- a/pkg/analyzer_cli/lib/src/driver.dart
+++ b/pkg/analyzer_cli/lib/src/driver.dart
@@ -284,6 +284,10 @@ class Driver implements CommandLineStarter {
     if (options.disableHints != _previousOptions.disableHints) {
       return false;
     }
+    if (options.enableInitializingFormalAccess !=
+        _previousOptions.enableInitializingFormalAccess) {
+      return false;
+    }
     if (options.enableStrictCallChecks !=
         _previousOptions.enableStrictCallChecks) {
       return false;
@@ -647,6 +651,8 @@ class Driver implements CommandLineStarter {
     AnalysisOptionsImpl contextOptions = new AnalysisOptionsImpl();
     contextOptions.trackCacheDependencies = false;
     contextOptions.hint = !options.disableHints;
+    contextOptions.enableInitializingFormalAccess =
+        options.enableInitializingFormalAccess;
     contextOptions.enableStrictCallChecks = options.enableStrictCallChecks;
     contextOptions.enableSuperMixins = options.enableSuperMixins;
     contextOptions.generateImplicitErrors = options.showPackageWarnings;