[llvm] [clang] [flang] [clang-tools-extra] [flang] Add EXECUTE_COMMAND_LINE runtime and lowering intrinsics implementation (PR #74077)

[Peter Klausler via cfe-commits]

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@@ -0,0 +1,31 @@
+//===-- include/flang/Runtime/command.h -------------------------*- C++ -*-===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef FORTRAN_RUNTIME_EXECUTE_H_
+#define FORTRAN_RUNTIME_EXECUTE_H_
+
+#include "flang/Runtime/entry-names.h"
+
+#include <cstdint>
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klausler wrote:

Is this `#include` necessary to define anything in this header?

https://github.com/llvm/llvm-project/pull/74077