Rename front end shadow classes from "Kernel..." to "Shadow...".

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

Index: pkg/front_end/lib/src/fasta/type_inference/type_inferrer.dart
diff --git a/pkg/front_end/lib/src/fasta/type_inference/type_inferrer.dart b/pkg/front_end/lib/src/fasta/type_inference/type_inferrer.dart
index 4e7db482776d8a7cc4fe9680529eb45e1f4414ed..b55873076e3f96fd2320912974d33c232848f3b4 100644
--- a/pkg/front_end/lib/src/fasta/type_inference/type_inferrer.dart
+++ b/pkg/front_end/lib/src/fasta/type_inference/type_inferrer.dart
@@ -520,7 +520,7 @@ abstract class TypeInferrerImpl extends TypeInferrer {
 
   /// Gets the initializer for the given [field], or `null` if there is no
   /// initializer.
-  Expression getFieldInitializer(KernelField field);
+  Expression getFieldInitializer(ShadowField field);
 
   DartType getSetterType(Member interfaceMember, DartType receiverType) {
     if (receiverType is InterfaceType) {
@@ -599,7 +599,7 @@ abstract class TypeInferrerImpl extends TypeInferrer {
   /// Derived classes should provide an implementation that calls
   /// [inferExpression] for the given [field]'s initializer expression.
   DartType inferFieldTopLevel(
-      KernelField field, DartType type, bool typeNeeded);
+      ShadowField field, DartType type, bool typeNeeded);
 
   @override
   void inferFunctionBody(
@@ -774,8 +774,8 @@ abstract class TypeInferrerImpl extends TypeInferrer {
     // Otherwise, if `Qi` is not `_`, let `Ri` be the greatest closure of
     // `Qi[T/S]` with respect to `?`.  Otherwise, let `Ri` be `dynamic`.
     for (int i = 0; i < formals.length; i++) {
-      KernelVariableDeclaration formal = formals[i];
-      if (KernelVariableDeclaration.isImplicitlyTyped(formal)) {
+      ShadowVariableDeclaration formal = formals[i];
+      if (ShadowVariableDeclaration.isImplicitlyTyped(formal)) {
         DartType inferredType;
         if (formalTypesFromContext[i] != null) {
           inferredType = greatestClosure(coreTypes,
@@ -974,8 +974,8 @@ abstract class TypeInferrerImpl extends TypeInferrer {
                 interfaceMember.kind == ProcedureKind.Getter) ||
             interfaceMember is Field)) {
       if (TypeInferenceEngineImpl.fullTopLevelInference) {
-        if (interfaceMember is KernelField) {
-          var accessorNode = KernelMember.getAccessorNode(interfaceMember);
+        if (interfaceMember is ShadowField) {
+          var accessorNode = ShadowMember.getAccessorNode(interfaceMember);
           if (accessorNode != null) {
             engine.inferAccessorFused(accessorNode, this.accessorNode);
           }
@@ -1134,6 +1134,6 @@ abstract class TypeInferrerImpl extends TypeInferrer {
   /// so this method will no longer be needed.  TODO(paulberry): remove this
   /// when it's appropriate to do so.
   bool _isFormalSemiSafe(VariableDeclaration formal) {
-    return formal is KernelVariableDeclaration && formal.isSemiSafe;
+    return formal is ShadowVariableDeclaration && formal.isSemiSafe;
   }
 }