Fix #10007: Propagate msvc-style link flags to clang-cl with Bazel

The idea here is to set the existing config "config_msvc" not only
when "msvc-cl" is specified but also when "clang-cl" is specified.

Keep in mind that clang-cl support in protobuf remains to be only
best-effort and untested for now.

PiperOrigin-RevId: 631195504

Author: yukawa

build_defs/BUILD.bazel

@@ -14,10 +14,24 @@ package(
 )
 
 create_compiler_config_setting(
-    name = "config_msvc",
+    name = "config_msvc_cl",
     value = "msvc-cl",
 )
 
+# Caveat: clang-cl support in protobuf is only best-effort / untested for now.
+create_compiler_config_setting(
+    name = "config_clang_cl",
+    value = "clang-cl",
+)
+
+selects.config_setting_group(
+    name = "config_msvc",
+    match_any = [
+        ":config_clang_cl",
+        ":config_msvc_cl",
+    ],
+)
+
 config_setting(
     name = "aarch64",
     values = {"cpu": "linux-aarch_64"},