Clean up dead code after spread desugaring

src/compiler/ast-loop-assignment-analyzer.cc

Index: src/compiler/ast-loop-assignment-analyzer.cc
diff --git a/src/compiler/ast-loop-assignment-analyzer.cc b/src/compiler/ast-loop-assignment-analyzer.cc
index 2074c944e6237bf85ed44b65c1fcf8d93827320b..11b24475c0d9d7af597a64ee15b12871fcb9791b 100644
--- a/src/compiler/ast-loop-assignment-analyzer.cc
+++ b/src/compiler/ast-loop-assignment-analyzer.cc
@@ -198,7 +198,7 @@ void ALAA::VisitCompareOperation(CompareOperation* e) {
 }
 
 
-void ALAA::VisitSpread(Spread* e) { Visit(e->expression()); }
+void ALAA::VisitSpread(Spread* e) { UNREACHABLE(); }
 
 
 void ALAA::VisitEmptyParentheses(EmptyParentheses* e) { UNREACHABLE(); }
@@ -266,7 +266,6 @@ void ALAA::VisitForOfStatement(ForOfStatement* loop) {
   Visit(loop->assign_iterator());
   Enter(loop);
   Visit(loop->assign_each());
-  Visit(loop->each());
   Visit(loop->subject());
   Visit(loop->body());
   Exit(loop);