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/clang-tidy/modernize/LoopConvertCheck.h b/linux-x64/clang/include/clang-tidy/modernize/LoopConvertCheck.h
new file mode 100644
index 0000000..b1eda48
--- /dev/null
+++ b/linux-x64/clang/include/clang-tidy/modernize/LoopConvertCheck.h
@@ -0,0 +1,92 @@
+//===--- LoopConvertCheck.h - clang-tidy-------------------------*- C++ -*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_LOOP_CONVERT_H
+#define LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_LOOP_CONVERT_H
+
+#include "../ClangTidyCheck.h"
+#include "../utils/IncludeInserter.h"
+#include "LoopConvertUtils.h"
+
+namespace clang {
+namespace tidy {
+namespace modernize {
+
+class LoopConvertCheck : public ClangTidyCheck {
+public:
+  LoopConvertCheck(StringRef Name, ClangTidyContext *Context);
+  bool isLanguageVersionSupported(const LangOptions &LangOpts) const override {
+    return LangOpts.CPlusPlus;
+  }
+  void storeOptions(ClangTidyOptions::OptionMap &Opts) override;
+  void registerMatchers(ast_matchers::MatchFinder *Finder) override;
+  void registerPPCallbacks(const SourceManager &SM, Preprocessor *PP,
+                           Preprocessor *ModuleExpanderPP) override;
+  void check(const ast_matchers::MatchFinder::MatchResult &Result) override;
+
+private:
+  struct RangeDescriptor {
+    RangeDescriptor();
+    bool ContainerNeedsDereference;
+    bool DerefByConstRef;
+    bool DerefByValue;
+    std::string ContainerString;
+    QualType ElemType;
+    bool NeedsReverseCall;
+  };
+
+  void getAliasRange(SourceManager &SM, SourceRange &DeclRange);
+
+  void doConversion(ASTContext *Context, const VarDecl *IndexVar,
+                    const ValueDecl *MaybeContainer, const UsageResult &Usages,
+                    const DeclStmt *AliasDecl, bool AliasUseRequired,
+                    bool AliasFromForInit, const ForStmt *Loop,
+                    RangeDescriptor Descriptor);
+
+  StringRef getContainerString(ASTContext *Context, const ForStmt *Loop,
+                               const Expr *ContainerExpr);
+
+  void getArrayLoopQualifiers(ASTContext *Context,
+                              const ast_matchers::BoundNodes &Nodes,
+                              const Expr *ContainerExpr,
+                              const UsageResult &Usages,
+                              RangeDescriptor &Descriptor);
+
+  void getIteratorLoopQualifiers(ASTContext *Context,
+                                 const ast_matchers::BoundNodes &Nodes,
+                                 RangeDescriptor &Descriptor);
+
+  void determineRangeDescriptor(ASTContext *Context,
+                                const ast_matchers::BoundNodes &Nodes,
+                                const ForStmt *Loop, LoopFixerKind FixerKind,
+                                const Expr *ContainerExpr,
+                                const UsageResult &Usages,
+                                RangeDescriptor &Descriptor);
+
+  bool isConvertible(ASTContext *Context, const ast_matchers::BoundNodes &Nodes,
+                     const ForStmt *Loop, LoopFixerKind FixerKind);
+
+  StringRef getReverseFunction() const;
+  StringRef getReverseHeader() const;
+
+  std::unique_ptr<TUTrackingInfo> TUInfo;
+  const unsigned long long MaxCopySize;
+  const Confidence::Level MinConfidence;
+  const VariableNamer::NamingStyle NamingStyle;
+  utils::IncludeInserter Inserter;
+  bool UseReverseRanges;
+  const bool UseCxx20IfAvailable;
+  std::string ReverseFunction;
+  std::string ReverseHeader;
+};
+
+} // namespace modernize
+} // namespace tidy
+} // namespace clang
+
+#endif // LLVM_CLANG_TOOLS_EXTRA_CLANG_TIDY_MODERNIZE_LOOP_CONVERT_H