Revert r27592, some unit tests fail.

sdk/lib/_internal/compiler/implementation/types/inferrer_visitor.dart

Index: sdk/lib/_internal/compiler/implementation/types/inferrer_visitor.dart
===================================================================
--- sdk/lib/_internal/compiler/implementation/types/inferrer_visitor.dart	(revision 27592)
+++ sdk/lib/_internal/compiler/implementation/types/inferrer_visitor.dart	(working copy)
@@ -554,6 +554,7 @@
   final Element analyzedElement;
   final TypeSystem<T> types;
   final E inferrer;
+  final Compiler compiler;
   final Map<TargetElement, List<LocalsHandler<T>>> breaksFor =
       new Map<TargetElement, List<LocalsHandler<T>>>();
   final Map<TargetElement, List<LocalsHandler>> continuesFor =
@@ -583,10 +584,10 @@
                   this.types,
                   Compiler compiler,
                   [LocalsHandler<T> handler])
-    : this.analyzedElement = analyzedElement,
+    : this.compiler = compiler,
+      this.analyzedElement = analyzedElement,
       this.locals = handler,
-      super(compiler.enqueuer.resolution.getCachedElements(analyzedElement),
-            compiler) {
+      super(compiler.enqueuer.resolution.getCachedElements(analyzedElement)) {
     if (handler != null) return;
     Node node = analyzedElement.parseNode(compiler);
     FieldInitializationScope<T> fieldScope =
@@ -614,13 +615,6 @@
 
   T visitFunctionExpression(FunctionExpression node);
 
-  T visitAssert(Send node) {
-    if (!compiler.enableUserAssertions) {
-      return types.nullType;
-    }
-    return visitStaticSend(node);
-  }
-
   T visitNode(Node node) {
     node.visitChildren(this);
   }