Vulkan: convert all the TODOs into actual issues to chase against

Bug: 134185757
Test: build
Change-Id: Ib9a27ba8b8da53707337d3d48e6da502f38670e5
diff --git a/vulkan/libvulkan/debug_report.h b/vulkan/libvulkan/debug_report.h
index 3d8bd50..e5b1587 100644
--- a/vulkan/libvulkan/debug_report.h
+++ b/vulkan/libvulkan/debug_report.h
@@ -78,7 +78,7 @@
         VkDebugReportCallbackEXT driver_handle;
     };
 
-    // TODO(jessehall): replace with std::shared_mutex when available in libc++
+    // TODO(b/143295577): use std::shared_mutex when available in libc++
     mutable std::shared_timed_mutex rwmutex_;
     Node head_;
 };