Drop region parameter to Unbounded, as it can be done without.

src/typing-reset.cc

Index: src/typing-reset.cc
diff --git a/src/typing-reset.cc b/src/typing-reset.cc
index 0650656b2e54ecfc4606e70eb666365dc577f106..97a641a8d07d75d130a91f910e455df08bd8c6c8 100644
--- a/src/typing-reset.cc
+++ b/src/typing-reset.cc
@@ -15,11 +15,11 @@ namespace internal {
 
 
 TypingReseter::TypingReseter(CompilationInfo* info)
-    : AstExpressionVisitor(info), info_(info) {}
+    : AstExpressionVisitor(info) {}
 
 
 void TypingReseter::VisitExpression(Expression* expression) {
-  expression->set_bounds(Bounds::Unbounded(info_->zone()));
+  expression->set_bounds(Bounds::Unbounded());
 }
 }
 }  // namespace v8::internal