cps2js: Bugfix in named parameters in call to superconstructor.

pkg/compiler/lib/src/cps_ir/cps_ir_builder_visitor.dart

Index: pkg/compiler/lib/src/cps_ir/cps_ir_builder_visitor.dart
diff --git a/pkg/compiler/lib/src/cps_ir/cps_ir_builder_visitor.dart b/pkg/compiler/lib/src/cps_ir/cps_ir_builder_visitor.dart
index 9eafea621fd7bd0b0c18106d0f53e1747687240e..e3a146d8e63c3a75177c0ab8bbf5e6f0494243a7 100644
--- a/pkg/compiler/lib/src/cps_ir/cps_ir_builder_visitor.dart
+++ b/pkg/compiler/lib/src/cps_ir/cps_ir_builder_visitor.dart
@@ -1408,8 +1408,9 @@ class JsIrBuilderVisitor extends IrBuilderVisitor {
       ir.Primitive value;
       // Load argument if provided.
       if (signature.optionalParametersAreNamed) {
-        int translatedIndex = selector.namedArguments.indexOf(param.name);
-        if (translatedIndex != -1) {
+        int nameIndex = selector.namedArguments.indexOf(param.name);
+        if (nameIndex != -1) {
+          int translatedIndex = selector.positionalArgumentCount + nameIndex;
           value = arguments[translatedIndex];
         }
       } else if (index < arguments.length) {
@@ -1418,7 +1419,7 @@ class JsIrBuilderVisitor extends IrBuilderVisitor {
       // Load default if argument was not provided.
       if (value == null) {
         if (param.initializer != null) {
-          value = visit(param.initializer);
+          value = inlineExpression(target, param.initializer);
         } else {
           value = irBuilder.buildNullLiteral();
         }