clang 8.0.0

### - r -

- RecursiveASTVisitor< ASTVisitor > : clang::ASTContext::ParentMap::ASTVisitor
- Redeclarable : clang::Decl
- RedeclarableTemplate : clang::RedeclarableTemplateDecl
- RefactoringASTConsumer : clang::tooling::ASTMatchRefactorer
- ReferenceType : clang::Type::ReferenceTypeBitfields
- RegisterEffectiveTriple : clang::driver::ToolChain
- ReturnStmt : clang::Stmt::ReturnStmtBitfields
- Rewriter : clang::RewriteBuffer