Implement sloppy-mode block-defined functions (Annex B 3.3)

src/typing.cc

Index: src/typing.cc
diff --git a/src/typing.cc b/src/typing.cc
index db5ca61a8e71b217dcbb8bce2d2894def51b20bd..18d94b07c9df74f232cdb1b6235eeff5518e1d26 100644
--- a/src/typing.cc
+++ b/src/typing.cc
@@ -136,6 +136,12 @@ void AstTyper::VisitEmptyStatement(EmptyStatement* stmt) {
 }
 
 
+void AstTyper::VisitSloppyBlockFunctionStatement(
+    SloppyBlockFunctionStatement* stmt) {
+  Visit(stmt->statement());
+}
+
+
 void AstTyper::VisitIfStatement(IfStatement* stmt) {
   // Collect type feedback.
   if (!stmt->condition()->ToBooleanIsTrue() &&