Manually fixes some clang-tidy changes

src/axom/mint/examples/mint_heat_equation.cpp

@@ -363,10 +363,8 @@ const std::string help_string =
   "-d INT, -dumpPeriod INT\n"
   "\tThe number of cycles to wait between writing a dump file.\n";
 
-/*!
- * \brief A structure that holds the command line arguments.
- */
-using Arguments = struct
+/// A structure that holds the command line arguments.
+struct Arguments
 {
   double h;
   double lower_bound[2];

src/axom/mint/mesh/CellTypes.hpp

@@ -108,7 +108,7 @@ constexpr int NUM_CELL_TYPES = static_cast<int>(CellType::NUM_CELL_TYPES);
  *
  * \brief Holds information associated with a given cell type.
  */
-using CellInfo = struct
+struct CellInfo
 {
   CellType cell_type;         /*!< cell type, e.g. mint::QUAD, mint::HEX */
   const char* name;           /*!< the name associated with the cell */

src/axom/sidre/tests/sidre_opaque_C.cpp

@@ -25,7 +25,7 @@ enum DType
   _UnknownType_
 };
 
-using AA_extent = struct
+struct AA_extent
 {
   int ilo;
   int ihi;
@@ -60,7 +60,7 @@ int AA_get_num_pts(AA_extent* self, Centering cent)
   return retval;
 }
 
-using AA_meshvar = struct
+struct AA_meshvar
 {
   Centering cent;
   DType type;

src/thirdparty/tests/compiler_flag_unused_local_typedef.cpp

@@ -14,7 +14,9 @@
 
 int main()
 {
-  using IntT = int;
+  // NOLINTBEGIN
+  typedef int IntT;
+  // NOLINTEND
 
   std::cout << "I have defined type IntT, but am not using it." << std::endl;
   return 0;