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/lldb/Expression/IRInterpreter.h b/linux-x64/clang/include/lldb/Expression/IRInterpreter.h
index 6148093..98ece96 100644
--- a/linux-x64/clang/include/lldb/Expression/IRInterpreter.h
+++ b/linux-x64/clang/include/lldb/Expression/IRInterpreter.h
@@ -6,8 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef liblldb_IRInterpreter_h_
-#define liblldb_IRInterpreter_h_
+#ifndef LLDB_EXPRESSION_IRINTERPRETER_H
+#define LLDB_EXPRESSION_IRINTERPRETER_H
 
 #include "lldb/Utility/ConstString.h"
 #include "lldb/Utility/Stream.h"
@@ -22,7 +22,6 @@
 
 namespace lldb_private {
 
-class ClangExpressionDeclMap;
 class IRMemoryMap;
 }