Always explicitely give a type to HInvokeStatic, and make the literal map know it's a map.

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

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of resolution;
 
 abstract class TreeElements {
   Element operator[](Node node);
   Selector getSelector(Send send);
   DartType getType(Node node);
@@ skipping 2601 matching lines @@
       }
     });
     if (!targetElement.isTarget && identical(mapping[body], targetElement)) {
       // If the body is itself a break or continue for another target, it
       // might have updated its mapping to the target it actually does target.
       mapping.remove(body);
     }
   }
 
   visitLiteralMap(LiteralMap node) {
+    world.registerInstantiatedClass(compiler.mapClass);
     node.visitChildren(this);
   }
 
   visitLiteralMapEntry(LiteralMapEntry node) {
     node.visitChildren(this);
   }
 
   visitNamedArgument(NamedArgument node) {
     visit(node.expression);
   }
@@ skipping 1017 matching lines @@
     return e;
   }
 
   /// Assumed to be called by [resolveRedirectingFactory].
   Element visitReturn(Return node) {
     Node expression = node.expression;
     return finishConstructorReference(visit(expression),
                                       expression, expression);
   }
 }