Extend visibility of :examine_stack to an upcoming Abseil Log.

PiperOrigin-RevId: 457005885
Change-Id: I9045ca94a3695303274d7c448b25e32fe02f3383
diff --git a/absl/debugging/BUILD.bazel b/absl/debugging/BUILD.bazel
index 932a8e9..5126205 100644
--- a/absl/debugging/BUILD.bazel
+++ b/absl/debugging/BUILD.bazel
@@ -121,7 +121,7 @@
     ],
     copts = ABSL_DEFAULT_COPTS,
     linkopts = ABSL_DEFAULT_LINKOPTS,
-    visibility = ["//visibility:private"],
+    visibility = ["//absl/log/internal:__pkg__"],
     deps = [
         ":stacktrace",
         ":symbolize",