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/PrettyStackTrace.h b/linux-x64/clang/include/llvm/Support/PrettyStackTrace.h
index f6ed7c9..ac25cff 100644
--- a/linux-x64/clang/include/llvm/Support/PrettyStackTrace.h
+++ b/linux-x64/clang/include/llvm/Support/PrettyStackTrace.h
@@ -21,8 +21,29 @@
 namespace llvm {
   class raw_ostream;
 
+  /// Enables dumping a "pretty" stack trace when the program crashes.
+  ///
+  /// \see PrettyStackTraceEntry
   void EnablePrettyStackTrace();
 
+  /// Enables (or disables) dumping a "pretty" stack trace when the user sends
+  /// SIGINFO or SIGUSR1 to the current process.
+  ///
+  /// This is a per-thread decision so that a program can choose to print stack
+  /// traces only on a primary thread, or on all threads that use
+  /// PrettyStackTraceEntry.
+  ///
+  /// \see EnablePrettyStackTrace
+  /// \see PrettyStackTraceEntry
+  void EnablePrettyStackTraceOnSigInfoForThisThread(bool ShouldEnable = true);
+
+  /// Replaces the generic bug report message that is output upon
+  /// a crash.
+  void setBugReportMsg(const char *Msg);
+
+  /// Get the bug report message that will be output upon a crash.
+  const char *getBugReportMsg();
+
   /// PrettyStackTraceEntry - This class is used to represent a frame of the
   /// "pretty" stack trace that is dumped when a program crashes. You can define
   /// subclasses of this and declare them on the program stack: when they are