Split implementation of KernelToElementMapImpl

pkg/compiler/lib/src/ssa/kernel_ast_adapter.dart

Index: pkg/compiler/lib/src/ssa/kernel_ast_adapter.dart
diff --git a/pkg/compiler/lib/src/ssa/kernel_ast_adapter.dart b/pkg/compiler/lib/src/ssa/kernel_ast_adapter.dart
index 1351c9ab4aaa5bc42f7cff20ac5713f66f4ff7ba..a5b537e34f0d5f76cb068460b4ca42673cca8ba2 100644
--- a/pkg/compiler/lib/src/ssa/kernel_ast_adapter.dart
+++ b/pkg/compiler/lib/src/ssa/kernel_ast_adapter.dart
@@ -87,6 +87,10 @@ class KernelAstAdapter extends KernelToElementMapBaseMixin
     _typeConverter = new DartTypeConverter(this);
   }
 
+  void addProgram(ir.Program node) {
+    throw new UnsupportedError('KernelAstAdapter.addProgram');
+  }
+
   @override
   ConstantValue computeConstantValue(ConstantExpression constant,
       {bool requireConstant: true}) {
@@ -139,6 +143,10 @@ class KernelAstAdapter extends KernelToElementMapBaseMixin
     return target;
   }
 
+  ir.Node getClassNode(ClassElement cls) {
+    throw new UnsupportedError('KernelAstAdapter.getClassNode');
+  }
+
   @override
   CommonElements get commonElements => _compiler.resolution.commonElements;