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/MC/MCWasmObjectWriter.h b/linux-x64/clang/include/llvm/MC/MCWasmObjectWriter.h
index 4adbca2..00da632 100644
--- a/linux-x64/clang/include/llvm/MC/MCWasmObjectWriter.h
+++ b/linux-x64/clang/include/llvm/MC/MCWasmObjectWriter.h
@@ -20,14 +20,15 @@
 
 class MCWasmObjectTargetWriter : public MCObjectTargetWriter {
   const unsigned Is64Bit : 1;
+  const unsigned IsEmscripten : 1;
 
 protected:
-  explicit MCWasmObjectTargetWriter(bool Is64Bit_);
+  explicit MCWasmObjectTargetWriter(bool Is64Bit_, bool IsEmscripten);
 
 public:
   virtual ~MCWasmObjectTargetWriter();
 
-  virtual Triple::ObjectFormatType getFormat() const { return Triple::Wasm; }
+  Triple::ObjectFormatType getFormat() const override { return Triple::Wasm; }
   static bool classof(const MCObjectTargetWriter *W) {
     return W->getFormat() == Triple::Wasm;
   }
@@ -38,6 +39,7 @@
   /// \name Accessors
   /// @{
   bool is64Bit() const { return Is64Bit; }
+  bool isEmscripten() const { return IsEmscripten; }
   /// @}
 };
 
@@ -50,6 +52,10 @@
 createWasmObjectWriter(std::unique_ptr<MCWasmObjectTargetWriter> MOTW,
                        raw_pwrite_stream &OS);
 
+std::unique_ptr<MCObjectWriter>
+createWasmDwoObjectWriter(std::unique_ptr<MCWasmObjectTargetWriter> MOTW,
+                          raw_pwrite_stream &OS, raw_pwrite_stream &DwoOS);
+
 } // namespace llvm
 
 #endif