Introduces the new syntax for deferred loading

sdk/lib/_internal/compiler/implementation/ssa/builder.dart

Index: sdk/lib/_internal/compiler/implementation/ssa/builder.dart
diff --git a/sdk/lib/_internal/compiler/implementation/ssa/builder.dart b/sdk/lib/_internal/compiler/implementation/ssa/builder.dart
index b42ae6af9dff58125321df4620d161b83b7f5af6..989e881a3454f32539fc2fb44a2341c8abd4109a 100644
--- a/sdk/lib/_internal/compiler/implementation/ssa/builder.dart
+++ b/sdk/lib/_internal/compiler/implementation/ssa/builder.dart
@@ -2968,10 +2968,22 @@ class SsaBuilder extends ResolvedVisitor {
       generateInstanceGetterWithCompiledReceiver(
           send, elements.getSelector(send), receiver);
     } else if (Elements.isStaticOrTopLevelFunction(element)) {
-      // TODO(5346): Try to avoid the need for calling [declaration] before
-      // creating an [HStatic].
-      push(new HStatic(element.declaration, backend.nonNullType));
-      // TODO(ahe): This should be registered in codegen.
+      if (element.isDeferredLoaderGetter()) {

[floitsch, 2014/03/19 21:04:51]

Can't you handle this one like all the other foreigns?

element.isForeign should be true and then it should be handled in the
visitForeignSend.

[sigurdm, 2014/03/20 12:26:33]

Other foreigns are only handled as calls (not in a getter context).

I created visitForeignGetter that is called from generateGetter.

+        FunctionElement deferredLoader = element;
+        Element loadFunction = compiler.loadLibraryFunction;
+        PrefixElement prefixElement = deferredLoader.enclosingElement;
+        String loadId =
+            compiler.deferredLoadTask.importDeferName[prefixElement.import];
+        var inputs = [graph.addConstantString(
+            new ast.DartString.literal(loadId), compiler)];
+        push(new HInvokeStatic(loadFunction, inputs, backend.nonNullType,
+                               targetCanThrow: false));
+      } else {
+        // TODO(5346): Try to avoid the need for calling [declaration] before
+        // creating an [HStatic].
+        push(new HStatic(element.declaration, backend.nonNullType));
+        // TODO(ahe): This should be registered in codegen.
+      }
       compiler.enqueuer.codegen.registerGetOfStaticFunction(
           element.declaration);
     } else if (Elements.isErroneousElement(element)) {