[clang] [clang-tools-extra] [lldb] [llvm] [Support][JSON] Use `std::unordered_map` for object storage (PR #171230)

[Cyndy Ishida via cfe-commits]

================
@@ -0,0 +1,288 @@
+//===- JSONParserBM.cpp - JSON parser benchmarks --------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
----------------
cyndyishida wrote:

It would be nice to have a subheader explaining what the benchmarks are doing. It's sprinkled in this code, but a description at the top of the header is helpful for others stumbling here.

https://github.com/llvm/llvm-project/pull/171230