Rename KernelElementAdapter and element_adapter.dart to IrToElementMap and ir_map.dart

pkg/compiler/lib/src/kernel/ir_element_map.dart

Index: pkg/compiler/lib/src/kernel/ir_element_map.dart
diff --git a/pkg/compiler/lib/src/kernel/element_adapter.dart b/pkg/compiler/lib/src/kernel/ir_element_map.dart
similarity index 99%
rename from pkg/compiler/lib/src/kernel/element_adapter.dart
rename to pkg/compiler/lib/src/kernel/ir_element_map.dart
index 96f3a81cb5986c03729bd9b3f1572bd19c369a07..76af8c02993e25c13e4610dbe60b022b78320fb8 100644
--- a/pkg/compiler/lib/src/kernel/element_adapter.dart
+++ b/pkg/compiler/lib/src/kernel/ir_element_map.dart
@@ -21,7 +21,7 @@ import '../universe/selector.dart';
 import 'kernel_debug.dart';
 
 /// Interface that translates between Kernel IR nodes and entities.
-abstract class KernelElementAdapter {
+abstract class IrToElementMap {
   /// Access to the commonly used elements and types.
   CommonElements get commonElements;
 
@@ -123,7 +123,7 @@ enum ForeignKind {
   NONE,
 }
 
-abstract class KernelElementAdapterMixin implements KernelElementAdapter {
+abstract class IrToElementMapMixin implements IrToElementMap {
   DiagnosticReporter get reporter;
   FunctionType getFunctionType(ir.FunctionNode node);
   native.BehaviorBuilder get nativeBehaviorBuilder;
@@ -466,7 +466,7 @@ class Stringifier extends ir.ExpressionVisitor<String> {
 /// [ConstantExpression].
 class Constantifier extends ir.ExpressionVisitor<ConstantExpression> {
   final bool requireConstant;
-  final KernelElementAdapterMixin elementAdapter;
+  final IrToElementMapMixin elementAdapter;
 
   Constantifier(this.elementAdapter, {this.requireConstant: true});