Revert "Towards compiling Hello World!" and "Compile and run Hello World!"

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 095473111da3e46b1ac898d69c8bdefc30223e6c..aac72e4c6a36765689035ee2202ca3f89edf8ee0 100644
--- a/pkg/compiler/lib/src/ssa/kernel_ast_adapter.dart
+++ b/pkg/compiler/lib/src/ssa/kernel_ast_adapter.dart
@@ -2,6 +2,7 @@
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
+import 'package:js_runtime/shared/embedded_names.dart';
 import 'package:kernel/ast.dart' as ir;
 
 import '../closure.dart';
@@ -16,6 +17,7 @@ import '../elements/jumps.dart';
 import '../elements/modelx.dart';
 import '../elements/resolution_types.dart';
 import '../elements/types.dart';
+import '../js/js.dart' as js;
 import '../js_backend/js_backend.dart';
 import '../kernel/element_map.dart';
 import '../kernel/kernel.dart';
@@ -239,6 +241,35 @@ class KernelAstAdapter extends KernelToElementMapMixin
     });
   }
 
+  js.Name getNameForJsGetName(ir.Node argument, ConstantValue constant) {
+    int index = _extractEnumIndexFromConstantValue(
+        constant, _compiler.resolution.commonElements.jsGetNameEnum);
+    if (index == null) return null;
+    return _backend.namer
+        .getNameForJsGetName(getNode(argument), JsGetName.values[index]);
+  }
+
+  js.Template getJsBuiltinTemplate(ConstantValue constant) {
+    int index = _extractEnumIndexFromConstantValue(
+        constant, _compiler.resolution.commonElements.jsBuiltinEnum);
+    if (index == null) return null;
+    return _backend.emitter.builtinTemplateFor(JsBuiltin.values[index]);
+  }
+
+  int _extractEnumIndexFromConstantValue(
+      ConstantValue constant, ClassEntity classElement) {
+    if (constant is ConstructedConstantValue) {
+      if (constant.type.element == classElement) {
+        assert(constant.fields.length == 1 || constant.fields.length == 2);
+        ConstantValue indexConstant = constant.fields.values.first;
+        if (indexConstant is IntConstantValue) {
+          return indexConstant.primitiveValue;
+        }
+      }
+    }
+    return null;
+  }
+
   DartType getDartType(ir.DartType type) {
     return _typeConverter.convert(type);
   }