refactor: rename RCollector.std_copy_for -> std_move_for

src/object2/DArray.cpp

@@ -183,7 +183,7 @@ namespace xo {
         DArray *
         DArray::shallow_move(obj<ACollector> gc) noexcept
         {
-            // note: not using gc.std_copy_for() here.
+            // note: not using gc.std_move_for() here.
             //       flexible array -> compiler doesn't know actual DArray allocation size
 
             DArray * copy = (DArray *)gc.alloc_copy((std::byte *)this);

src/object2/DBoolean.cpp

@@ -38,7 +38,7 @@ namespace xo {
         DBoolean *
         DBoolean::shallow_move(obj<ACollector> gc) noexcept
         {
-            return gc.std_copy_for(this);
+            return gc.std_move_for(this);
         }
 
         size_t

src/object2/DDictionary.cpp

@@ -276,7 +276,7 @@ namespace xo {
         DDictionary *
         DDictionary::shallow_move(obj<ACollector> gc) noexcept
         {
-            return gc.std_copy_for(this);
+            return gc.std_move_for(this);
         }
 
         std::size_t

src/object2/DFloat.cpp

@@ -36,7 +36,7 @@ namespace xo {
         DFloat *
         DFloat::shallow_move(obj<ACollector> gc) noexcept
         {
-            return gc.std_copy_for(this);
+            return gc.std_move_for(this);
         }
 
         size_t

src/object2/DInteger.cpp

@@ -36,7 +36,7 @@ namespace xo {
         DInteger *
         DInteger::shallow_move(obj<ACollector> gc) noexcept
         {
-            return gc.std_copy_for(this);
+            return gc.std_move_for(this);
         }
 
         size_t

src/object2/DList.cpp

@@ -187,7 +187,7 @@ namespace xo {
         DList *
         DList::shallow_move(obj<ACollector> gc) noexcept
         {
-            return gc.std_copy_for(this);
+            return gc.std_move_for(this);
         }
 
         auto

src/object2/DRuntimeError.cpp

@@ -61,7 +61,7 @@ namespace xo {
         DRuntimeError *
         DRuntimeError::shallow_move(obj<ACollector> gc) noexcept
         {
-            return gc.std_copy_for(this);
+            return gc.std_move_for(this);
         }
 
         std::size_t