Better dependency tracking

sdk/lib/_internal/compiler/implementation/resolution/registry.dart

Index: sdk/lib/_internal/compiler/implementation/resolution/registry.dart
diff --git a/sdk/lib/_internal/compiler/implementation/resolution/registry.dart b/sdk/lib/_internal/compiler/implementation/resolution/registry.dart
index 2dc496234c6efe9c54daf6d2bcda30cfef2b3cf4..98414072e3cde2c7dce621af2b74ef2ea7209da9 100644
--- a/sdk/lib/_internal/compiler/implementation/resolution/registry.dart
+++ b/sdk/lib/_internal/compiler/implementation/resolution/registry.dart
@@ -19,8 +19,6 @@ class ResolutionRegistry extends Registry {
 
   bool get isForResolution => true;
 
-  Element get currentElement => mapping.currentElement;
-
   ResolutionEnqueuer get world => compiler.enqueuer.resolution;
 
   World get universe => compiler.world;
@@ -223,7 +221,7 @@ class ResolutionRegistry extends Registry {
   }
 
   void registerDynamicInvocation(Selector selector) {
-    world.registerDynamicInvocation(currentElement, selector);
+    world.registerDynamicInvocation(selector);
   }
 
   void registerSuperNoSuchMethod() {
@@ -255,11 +253,11 @@ class ResolutionRegistry extends Registry {
   }
 
   void registerDynamicGetter(Selector selector) {
-    world.registerDynamicGetter(currentElement, selector);
+    world.registerDynamicGetter(selector);
   }
 
   void registerDynamicSetter(Selector selector) {
-    world.registerDynamicSetter(currentElement, selector);
+    world.registerDynamicSetter(selector);
   }
 
   void registerConstSymbol(String name) {