Rename atRoot param for Transfer() and DeepRemove()

- Renamed atRoot param to hasNoParentContainer for Transfer() and
  DeepRemove()
- Added comments for each instances of hasNoParentContainer for
  Transfer()
- For SomeValue.Transfer() and PublishedValue.Transfer(), use
  received hasNoParentContainer argument as inner value's
  Transfer() parameter

runtime/interpreter/interpreter.go

@@ -1706,7 +1706,7 @@ func (interpreter *Interpreter) transferAndConvert(
 		false,
 		nil,
 		nil,
-		true,
+		true, // value is standalone.
 	)
 
 	result := interpreter.ConvertAndBox(
@@ -3925,7 +3925,7 @@ func (interpreter *Interpreter) authAccountSaveFunction(addressValue AddressValu
 				true,
 				nil,
 				nil,
-				true,
+				true, // value is standalone because it is from invocation.Arguments[0].
 			)
 
 			// Write new value
@@ -4050,7 +4050,7 @@ func (interpreter *Interpreter) authAccountReadFunction(addressValue AddressValu
 				false,
 				nil,
 				nil,
-				false,
+				false, // value is an element in storage map because it is from "ReadStored".
 			)
 
 			// Remove the value from storage,

runtime/interpreter/interpreter_expression.go

@@ -1359,7 +1359,7 @@ func (interpreter *Interpreter) VisitAttachExpression(attachExpression *ast.Atta
 		false,
 		nil,
 		nil,
-		true,
+		true, // base is standalone.
 	).(*CompositeValue)
 
 	// we enforce this in the checker

runtime/interpreter/interpreter_invocation.go

@@ -101,7 +101,7 @@ func (interpreter *Interpreter) invokeFunctionValue(
 					false,
 					nil,
 					nil,
-					true,
+					true, // argument is standalone.
 				)
 			}
 		}

runtime/interpreter/interpreter_statement.go

@@ -326,7 +326,7 @@ func (interpreter *Interpreter) VisitForStatement(statement *ast.ForStatement) S
 		false,
 		nil,
 		nil,
-		true,
+		true, // value is standalone
 	)
 
 	iterable, ok := transferredValue.(IterableValue)

runtime/interpreter/storage_test.go

@@ -629,7 +629,7 @@ func TestNestedContainerMutationAfterMove(t *testing.T) {
 			false,
 			nil,
 			map[atree.ValueID]struct{}{},
-			true,
+			true, // childValue1 is standalone before being inserted into containerValue1.
 		).(*CompositeValue)
 
 		containerValue1.Append(inter, EmptyLocationRange, childValue1)