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

src/typing-reset.h

Index: src/typing-reset.h
diff --git a/src/typing-reset.h b/src/typing-reset.h
index 5e7d6282007fb7cfd3b885e6a9f2b7f87a3b0c95..7d87dc0f50c873393b039a062b014935010e579d 100644
--- a/src/typing-reset.h
+++ b/src/typing-reset.h
@@ -19,9 +19,6 @@ class TypingReseter : public AstExpressionVisitor {
 
  protected:
   void VisitExpression(Expression* expression) override;
-
- private:
-  CompilationInfo* info_;
 };
 }
 }  // namespace v8::internal