Support check mode for statics.

lib/compiler/implementation/ssa/builder.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.
 
 class Interceptors {
   Compiler compiler;
   Interceptors(Compiler this.compiler);
 
   SourceString mapOperatorToMethodName(Operator op) {
     String name = op.source.stringValue;
@@ skipping 883 matching lines @@
 
   HGraph buildLazyInitializer(VariableElement variable) {
     HBasicBlock block = graph.addNewBlock();
     open(graph.entry);
     close(new HGoto()).addSuccessor(block);
     open(block);
     SendSet node = variable.parseNode(compiler);
     Link<Node> link = node.arguments;
     assert(!link.isEmpty() && link.tail.isEmpty());
     visit(link.head);
-    close(new HReturn(pop())).addSuccessor(graph.exit);
+    HInstruction value = pop();
+    value = potentiallyCheckType(value, variable);
+    close(new HReturn(value)).addSuccessor(graph.exit);
     graph.finalize();
     return graph;
   }
 
   /**
    * Returns the constructor body associated with the given constructor or
    * creates a new constructor body, if none can be found.
    *
    * Returns [:null:] if the constructor does not have a body.
    */
@@ skipping 1176 matching lines @@
     stack.add(value);
   }
 
   void generateSetter(SendSet send, Element element, HInstruction value) {
     if (Elements.isStaticOrTopLevelField(element)) {
       if (element.isSetter()) {
         HStatic target = new HStatic(element);
         add(target);
         addWithPosition(new HInvokeStatic(<HInstruction>[target, value]), send);
       } else {
+        value = potentiallyCheckType(value, element);
         addWithPosition(new HStaticStore(element, value), send);
       }
       stack.add(value);
     } else if (element === null || Elements.isInstanceField(element)) {
       HInstruction receiver = generateInstanceSendReceiver(send);
       generateInstanceSetterWithCompiledReceiver(send, receiver, value);
     } else if (Elements.isErroneousElement(element)) {
       // An erroneous element indicates an unresolved static setter.
       generateThrowNoSuchMethod(send,
                                 getTargetName(element, 'set '),
@@ skipping 1982 matching lines @@
           new HSubGraphBlockInformation(elseBranch.graph));
 
     HBasicBlock conditionStartBlock = conditionBranch.block;
     conditionStartBlock.setBlockFlow(info, joinBlock);
     SubGraph conditionGraph = conditionBranch.graph;
     HIf branch = conditionGraph.end.last;
     assert(branch is HIf);
     branch.blockInformation = conditionStartBlock.blockFlow;
   }
 }