Fine-grain field, getter, setter, and function access in IrBuilder.

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

Index: pkg/compiler/lib/src/cps_ir/cps_ir_nodes.dart
diff --git a/pkg/compiler/lib/src/cps_ir/cps_ir_nodes.dart b/pkg/compiler/lib/src/cps_ir/cps_ir_nodes.dart
index 8fc308d1527ee7d6b07ad109470a7e7a448c370b..a53f4e50964e7171166e9a77059edb6c72f1bb07 100644
--- a/pkg/compiler/lib/src/cps_ir/cps_ir_nodes.dart
+++ b/pkg/compiler/lib/src/cps_ir/cps_ir_nodes.dart
@@ -265,20 +265,24 @@ class InvokeMethod extends Expression implements Invoke {
   CallingConvention callingConvention;
   final Reference<Continuation> continuation;
   final List<Reference<Primitive>> arguments;
+  final SourceInformation sourceInformation;
 
   InvokeMethod(Primitive receiver,
                Selector selector,
                Continuation continuation,
-               List<Primitive> arguments)
+               List<Primitive> arguments,
+               {SourceInformation sourceInformation})
       : this.internal(new Reference<Primitive>(receiver),
                       selector,
                       new Reference<Continuation>(continuation),
-                      _referenceList(arguments));
+                      _referenceList(arguments),
+                      sourceInformation);
 
   InvokeMethod.internal(this.receiver,
                         this.selector,
                         this.continuation,
                         this.arguments,
+                        this.sourceInformation,
                         [this.callingConvention = CallingConvention.DART]) {
     assert(isValid);
   }