Make initializing formal access available by default

pkg/compiler/lib/src/compile_time_constants.dart

Index: pkg/compiler/lib/src/compile_time_constants.dart
diff --git a/pkg/compiler/lib/src/compile_time_constants.dart b/pkg/compiler/lib/src/compile_time_constants.dart
index a8f3a8921328311d433cd8b500d876c3950a1d91..a1d62a2e6d7cdec533cc6642e0c0c074be354bea 100644
--- a/pkg/compiler/lib/src/compile_time_constants.dart
+++ b/pkg/compiler/lib/src/compile_time_constants.dart
@@ -1241,13 +1241,10 @@ class ConstructorEvaluator extends CompileTimeConstantEvaluator {
       if (parameter.isInitializingFormal) {
         InitializingFormalElement initializingFormal = parameter;
         updateFieldValue(node, initializingFormal.fieldElement, argument);
-        if (compiler.options.enableInitializingFormalAccess) {
-          definitions[parameter] = argument;
-        }
       } else {
         potentiallyCheckType(parameter, argument);
-        definitions[parameter] = argument;
       }
+      definitions[parameter] = argument;
     });
   }