Incremental compilation: set up inheritance.

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

Index: dart/pkg/compiler/lib/src/ssa/codegen.dart
diff --git a/dart/pkg/compiler/lib/src/ssa/codegen.dart b/dart/pkg/compiler/lib/src/ssa/codegen.dart
index fce5372330fa5a595f9723b15dd429d612c0fe95..f38a9e89edc2bf4ef6a5a9a9e5d3415eb421b62a 100644
--- a/dart/pkg/compiler/lib/src/ssa/codegen.dart
+++ b/dart/pkg/compiler/lib/src/ssa/codegen.dart
@@ -1569,6 +1569,10 @@ class SsaCodeGenerator implements HVisitor, HBlockInformationVisitor {
   }
 
   Selector getOptimizedSelectorFor(HInvokeDynamic node, Selector selector) {
+    if (compiler.hasIncrementalSupport) {

[ahe, 2014/11/11 15:40:51]

Stephan: please take a look at this.

This is to remove customizations based on receiver, for example:

class A {
  get name => 'A.m';

  m() {
    print('Called $name');
  }
}

class B extends A {
  get name => 'B.m';
}

var instance;
main() {
  if (instance == null) {
    instance = new A();
  // Comment in this code in second version:
  // } else {
  // instance = new B();
  }
  instance.m();
}

Here, instance was assumed to be an instance of A, so B.name wasn't enqueued.

+      return new TypedSelector(
+          compiler.typesTask.dynamicType, selector, compiler.world);
+    }
     if (node.element != null) {
       // Create an artificial type mask to make sure only
       // [node.element] will be enqueued. We're not using the receiver