[llvm] Add os select for plugin process on Initialization target to add windows (PR #211276)

[David Young via llvm-commits]

https://github.com/youngd007 created https://github.com/llvm/llvm-project/pull/211276

Another small piece of windows build support for LLDB in bazel.    Internally at Meta, our buck2 rule for this has a split for mac/linux with PluginProcessPOSIX and windows with PluginProcessWindowsCommon.  So this should be a no-op for existing linux & mac builds while setting up a bit more for windows.  

I have no bazel build set up locally, so will wait on CI to confirm no regression.
bazel rule creation assisted with claude

>From bdc32c088406eb46a13ff9a376bb20efb6a0d456 Mon Sep 17 00:00:00 2001
From: David Young <davidayoung at meta.com>
Date: Wed, 22 Jul 2026 07:33:26 -0700
Subject: [PATCH] Add os select for plugin process on Initialization target

---
 utils/bazel/llvm-project-overlay/lldb/BUILD.bazel | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/utils/bazel/llvm-project-overlay/lldb/BUILD.bazel b/utils/bazel/llvm-project-overlay/lldb/BUILD.bazel
index 546e038fa6ea1..573e49138681b 100644
--- a/utils/bazel/llvm-project-overlay/lldb/BUILD.bazel
+++ b/utils/bazel/llvm-project-overlay/lldb/BUILD.bazel
@@ -353,9 +353,15 @@ cc_library(
         ":Utility",
         ":Version",
         "//lldb/source/Plugins:PluginProcessGDBRemote",
-        "//lldb/source/Plugins:PluginProcessPOSIX",
         "//llvm:Support",
-    ],
+    ] + select({
+        "@platforms//os:windows": [
+            "//lldb/source/Plugins:PluginProcessWindowsCommon",
+        ],
+        "//conditions:default": [
+            "//lldb/source/Plugins:PluginProcessPOSIX",
+        ],
+    }),
 )
 
 gentbl_cc_library(