dart2js cps: Replace GetLazyStatic with GetStatic.

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

Index: pkg/compiler/lib/src/cps_ir/gvn.dart
diff --git a/pkg/compiler/lib/src/cps_ir/gvn.dart b/pkg/compiler/lib/src/cps_ir/gvn.dart
index 02379d85c1a5e3493d6acda9c84e6beb317f30f5..e8df8391e6a4a4fbaac49e59daab96549cd21601 100644
--- a/pkg/compiler/lib/src/cps_ir/gvn.dart
+++ b/pkg/compiler/lib/src/cps_ir/gvn.dart
@@ -109,13 +109,22 @@ class GVN extends TrampolineRecursiveVisitor implements Pass {
       return next;
     }
 
+    // Update effect numbers due to side effects from a static initializer.
+    // GetLazyStatic is GVN'ed like a GetStatic, but the effects of the static
+    // initializer occur before reading the field.
+    if (prim is GetLazyStatic) {
+      visit(prim);
+    }
+
     // Compute the GVN vector for this computation.
     List vector = gvnVectorBuilder.make(prim, effectNumbers);
 
     // Update effect numbers due to side effects.
     // Do this after computing the GVN vector so the primitive's GVN is not
-    // influenced by its own side effects.
-    visit(prim);
+    // influenced by its own side effects, except in the case of GetLazyStatic.
+    if (prim is! GetLazyStatic) {
+      visit(prim);
+    }
 
     if (vector == null) {
       // The primitive is not GVN'able. Move on.