Move Exodus helper function implementations to .C

These are long enough that they might not be inlined regardless, and
this helper class is complicated enough with the declarations alone

Author: roystgnr

include/mesh/exodusII_io_helper.h

@@ -942,34 +942,14 @@ class ExodusII_IO_Helper : public ParallelObject
    * each processor.  This plus a node id gives a valid nodal solution
    * vector index.
    */
-  dof_id_type node_id_to_vec_id(dof_id_type n) const
-  {
-    if (_added_side_node_offsets.empty())
-      return n;
-
-    // Find the processor id that has node_id in the parallel vec
-    const auto lb = std::upper_bound(_true_node_offsets.begin(),
-                                     _true_node_offsets.end(), n);
-    libmesh_assert(lb != _true_node_offsets.end());
-    const processor_id_type p = lb - _true_node_offsets.begin();
-
-    return n + (p ? _added_side_node_offsets[p-1] : 0);
-  }
+  dof_id_type node_id_to_vec_id(dof_id_type n) const;
 
   /*
    * Returns the sum of both added node "offsets" on processors 0
    * through p-1 and real nodes added on processors 0 to p.
    * This is the starting index for added nodes' data.
    */
-  dof_id_type added_node_offset_on(processor_id_type p) const
-  {
-    libmesh_assert (p < _true_node_offsets.size());
-    const dof_id_type added_node_offsets =
-      (_added_side_node_offsets.empty() || !p) ? 0 :
-      _added_side_node_offsets[p-1];
-    return _true_node_offsets[p] + added_node_offsets;
-  }
-
+  dof_id_type added_node_offset_on(processor_id_type p) const;
 
 protected:
   /**

src/mesh/exodusII_io_helper.C

@@ -4948,6 +4948,34 @@ void ExodusII_IO_Helper::build_subdomain_map(const MeshBase & mesh, bool local)
 }
 
 
+
+dof_id_type ExodusII_IO_Helper::node_id_to_vec_id(dof_id_type n) const
+{
+  if (_added_side_node_offsets.empty())
+    return n;
+
+  // Find the processor id that has node_id in the parallel vec
+  const auto lb = std::upper_bound(_true_node_offsets.begin(),
+                                   _true_node_offsets.end(), n);
+  libmesh_assert(lb != _true_node_offsets.end());
+  const processor_id_type p = lb - _true_node_offsets.begin();
+
+  return n + (p ? _added_side_node_offsets[p-1] : 0);
+}
+
+
+
+dof_id_type ExodusII_IO_Helper::added_node_offset_on(processor_id_type p) const
+{
+  libmesh_assert (p < _true_node_offsets.size());
+  const dof_id_type added_node_offsets =
+    (_added_side_node_offsets.empty() || !p) ? 0 :
+    _added_side_node_offsets[p-1];
+  return _true_node_offsets[p] + added_node_offsets;
+}
+
+
+
 int ExodusII_IO_Helper::Conversion::get_node_map(int i) const
 {
   if (!node_map)