src/vs/workbench/browser/parts/editor/editorGroupView.ts/EditorGroupView/moveEditor
class EditorGroupView:	moveEditor(editor: EditorInput, target: EditorGroupView, options?: IEditorOptions, internalOptions?: IInternalEditorTitleControlOptions): void {

		// Move within same group
		if (this === target) {
			this.doMoveEditorInsideGroup(editor, options);
		}

		// Move across groups
		else {
			this.doMoveOrCopyEditorAcrossGroups(editor, target, options, { ...internalOptions, keepCopy: false });
		}
	}