dart2js: Allow 'throw' when inlining

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 get currentElement;
   Set<Node> get superUses;
 
@@ skipping 2459 matching lines @@
     }
     world.registerStaticUse(redirectionTarget);
     world.registerInstantiatedClass(
         redirectionTarget.enclosingElement.declaration, mapping);
   }
 
   visitThrow(Throw node) {
     if (!inCatchBlock && node.expression == null) {
       error(node, MessageKind.THROW_WITHOUT_EXPRESSION);
     }
-    compiler.backend.registerThrow(mapping);
+    // We don't know ahead of time whether we will need the throw in a statement
+    // context or an expression context, so we register both here, even though
+    // we may not need ThrowExpression.
+    compiler.backend.registerWrapException(mapping);
+    compiler.backend.registerThrowExpression(mapping);
     visit(node.expression);
   }
 
   visitVariableDefinitions(VariableDefinitions node) {
     VariableDefinitionsVisitor visitor =
         new VariableDefinitionsVisitor(compiler, node, this,
                                        ElementKind.VARIABLE);
     // Ensure that we set the type of the [VariableListElement] since it depends
     // on the current scope. If the current scope is a [MethodScope] or
     // [BlockScope] it will not be available for the
@@ skipping 1383 matching lines @@
     return e;
   }
 
   /// Assumed to be called by [resolveRedirectingFactory].
   Element visitReturn(Return node) {
     Node expression = node.expression;
     return finishConstructorReference(visit(expression),
                                       expression, expression);
   }
 }