Dart SDK Spelling b, c, and d.

pkg/front_end/lib/src/fasta/type_inference/type_inference_engine.dart

 // Copyright (c) 2017, the Dart project authors. Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE.md file.
 
 import 'package:front_end/src/base/instrumentation.dart';
 import 'package:front_end/src/dependency_walker.dart' as dependencyWalker;
 import 'package:front_end/src/fasta/type_inference/type_inferrer.dart';
 import 'package:kernel/ast.dart' show DartType, DynamicType;
 import 'package:kernel/class_hierarchy.dart';
 import 'package:kernel/core_types.dart';
@@ skipping 80 matching lines @@
   final fieldNodes = <FieldNode<F>>[];
 
   @override
   CoreTypes coreTypes;
 
   @override
   ClassHierarchy classHierarchy;
 
   TypeInferenceEngineImpl(this.instrumentation, this.strongMode);
 
-  /// Cleares the initializer of [field].
+  /// Clears the initializer of [field].
   void clearFieldInitializer(F field);
 
   /// Creates a [FieldNode] to track dependencies of the given [field].
   FieldNode<F> createFieldNode(F field);
 
   /// Queries whether the given [field] has an initializer.
   bool fieldHasInitializer(F field);
 
   @override
   void finishTopLevel() {
@@ skipping 86 matching lines @@
   @override
   void evaluateScc(List<FieldNode<F>> scc) {
     for (var f in scc) {
       f._typeInferenceEngine.inferFieldCircular(f._field);
     }
     for (var f in scc) {
       f._typeInferenceEngine.inferField(f._field);
     }
   }
 }