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/BinaryStreamReader.h b/linux-x64/clang/include/llvm/Support/BinaryStreamReader.h
index d8fddde..b611707 100644
--- a/linux-x64/clang/include/llvm/Support/BinaryStreamReader.h
+++ b/linux-x64/clang/include/llvm/Support/BinaryStreamReader.h
@@ -11,6 +11,7 @@
 
 #include "llvm/ADT/ArrayRef.h"
 #include "llvm/ADT/STLExtras.h"
+#include "llvm/Support/Alignment.h"
 #include "llvm/Support/BinaryStreamArray.h"
 #include "llvm/Support/BinaryStreamRef.h"
 #include "llvm/Support/ConvertUTF.h"
@@ -89,7 +90,7 @@
   template <typename T> Error readEnum(T &Dest) {
     static_assert(std::is_enum<T>::value,
                   "Cannot call readEnum with non-enum value!");
-    typename std::underlying_type<T>::type N;
+    std::underlying_type_t<T> N;
     if (auto EC = readInteger(N))
       return EC;
     Dest = static_cast<T>(N);
@@ -148,14 +149,14 @@
   /// returns an appropriate error code.
   Error readStreamRef(BinaryStreamRef &Ref, uint32_t Length);
 
-  /// Read \p Length bytes from the underlying stream into \p Stream.  This is
+  /// Read \p Length bytes from the underlying stream into \p Ref.  This is
   /// equivalent to calling getUnderlyingStream().slice(Offset, Length).
   /// Updates the stream's offset to point after the newly read object.  Never
   /// causes a copy.
   ///
   /// \returns a success error code if the data was successfully read, otherwise
   /// returns an appropriate error code.
-  Error readSubstream(BinarySubstreamRef &Stream, uint32_t Size);
+  Error readSubstream(BinarySubstreamRef &Ref, uint32_t Length);
 
   /// Get a pointer to an object of type T from the underlying stream, as if by
   /// memcpy, and store the result into \p Dest.  It is up to the caller to
@@ -198,7 +199,7 @@
     if (auto EC = readBytes(Bytes, NumElements * sizeof(T)))
       return EC;
 
-    assert(alignmentAdjustment(Bytes.data(), alignof(T)) == 0 &&
+    assert(isAddrAligned(Align::Of<T>(), Bytes.data()) &&
            "Reading at invalid alignment!");
 
     Array = ArrayRef<T>(reinterpret_cast<const T *>(Bytes.data()), NumElements);