message: verilog: tools: ls: symbol-table-handler: Replaced unordered_set with flat_hash_set
diff: #define VERILOG_TOOLS_LS_SYMBOL_TABLE_HANDLER_H
  #include <memory>
  -#include <unordered_set>
  #include <vector>
  +#include "absl/container/flat_hash_set.h"
  #include "absl/status/statusor.h"
  #include "absl/strings/string_view.h"
  #include "common/lsp/lsp-protocol.h"
  @@ -59,13 +59,13 @@ class SymbolTableHandler {
  const verible::lsp::DefinitionParams &params);
  private:
  - std::unordered_set<std::string>
  - checkedfiles; // set of checked files to prevent unnecessary calls for
  - // creating a symbol table for already seen files
  // current VerilogProject for which the symbol table is created
  std::unique_ptr<VerilogProject> currproject;
  // symbol table structure
  std::unique_ptr<SymbolTable> symboltable;
  + // set of checked files to prevent unnecessary calls for creating
  + // a symbol table for already seen files
  + absl::flat_hash_set<std::string> checkedfiles;
  };
  }; // namespace verilog
  