Update prebuilt Clang to r416183b from Android.

https://android.googlesource.com/platform/prebuilts/clang/host/
linux-x86/+/06a71ddac05c22edb2d10b590e1769b3f8619bef

clang 12.0.5 (based on r416183b) from build 7284624.

Change-Id: I277a316abcf47307562d8b748b84870f31a72866
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/linux-x64/clang/include/llvm/Support/Signposts.h b/linux-x64/clang/include/llvm/Support/Signposts.h
index b5a8c3d..8036b1f 100644
--- a/linux-x64/clang/include/llvm/Support/Signposts.h
+++ b/linux-x64/clang/include/llvm/Support/Signposts.h
@@ -17,9 +17,10 @@
 #ifndef LLVM_SUPPORT_SIGNPOSTS_H
 #define LLVM_SUPPORT_SIGNPOSTS_H
 
+#include "llvm/ADT/StringRef.h"
+
 namespace llvm {
 class SignpostEmitterImpl;
-class Timer;
 
 /// Manages the emission of signposts into the recording method supported by
 /// the OS.
@@ -32,10 +33,10 @@
 
   bool isEnabled() const;
 
-  /// Begin a signposted interval for the given timer.
-  void startTimerInterval(Timer *T);
-  /// End a signposted interval for the given timer.
-  void endTimerInterval(Timer *T);
+  /// Begin a signposted interval for a given object.
+  void startInterval(const void *O, StringRef Name);
+  /// End a signposted interval for a given object.
+  void endInterval(const void *O, StringRef Name);
 };
 
 } // end namespace llvm