message: [lldb] Added assert to VerifyDecl
  We could VerifyDecl sometimes with a nullptr. It would be nice if we
  could get an actual assert here instead of triggering UB.
diff: #include "lldb/Symbol/VerifyDecl.h"
  #include "clang/AST/DeclBase.h"
  -void lldb_private::VerifyDecl(clang::Decl *decl) { decl->getAccess(); }
  +void lldb_private::VerifyDecl(clang::Decl *decl) {
  + assert(decl && "VerifyDecl called with nullptr?");
  + decl->getAccess();
  +}
  