xo-alloc: IAlloc* i/face sufficient for Object._forward_children

xo-object/src/object/Boolean.cpp

@@ -75,7 +75,7 @@ namespace xo {
 
         // LCOV_EXCL_START
         std::size_t
-        Boolean::_forward_children(gc::GC *)
+        Boolean::_forward_children(gc::IAlloc *)
         {
             assert(false);
             return 0;

xo-object/src/object/Float.cpp

@@ -48,7 +48,7 @@ namespace xo {
         }
 
         std::size_t
-        Float::_forward_children(gc::GC * /*gc*/) {
+        Float::_forward_children(gc::IAlloc * /*gc*/) {
             return Float::_shallow_size();
         }
     }

xo-object/src/object/Integer.cpp

@@ -49,7 +49,7 @@ namespace xo {
         }
 
         std::size_t
-        Integer::_forward_children(gc::GC * /*gc*/) {
+        Integer::_forward_children(gc::IAlloc * /*gc*/) {
             return Integer::_shallow_size();
         }
 

xo-object/src/object/List.cpp

@@ -110,7 +110,7 @@ namespace xo {
         }
 
         std::size_t
-        List::_forward_children(gc::GC * gc)
+        List::_forward_children(gc::IAlloc * gc)
         {
             Object::_forward_inplace(head_, gc);
             Object::_forward_inplace(rest_, gc);

xo-object/src/object/String.cpp

@@ -152,7 +152,7 @@ namespace xo {
         }
 
         std::size_t
-        String::_forward_children(gc::GC *)
+        String::_forward_children(gc::IAlloc *)
         {
             return this->_shallow_size();
         }