[turbofan] New operator for loads of DYNAMIC_[GLOBAL,LOCAL].

src/compiler/control-builders.cc

Index: src/compiler/control-builders.cc
diff --git a/src/compiler/control-builders.cc b/src/compiler/control-builders.cc
index 0e4f1683b86668d5d623f88a56f192cad4bd6ada..a5e3d2ffc3a1a956ddbc3142a65a50496626197d 100644
--- a/src/compiler/control-builders.cc
+++ b/src/compiler/control-builders.cc
@@ -149,6 +149,16 @@ void BlockBuilder::EndBlock() {
 }
 
 
+void BlockBuilder::BreakUnless(Node* condition, BranchHint hint) {
+  IfBuilder control_if(builder_);
+  control_if.If(condition, hint);
+  control_if.Then();
+  control_if.Else();
+  Break();
+  control_if.End();
+}
+
+
 void TryCatchBuilder::BeginTry() {
   catch_environment_ = environment()->CopyAsUnreachable();
   catch_environment_->Push(the_hole());