src/vs/editor/common/viewModel/viewModelImpl.ts/ViewModel/getDecorationsInViewport
class ViewModel:	public getDecorationsInViewport(visibleRange: Range, onlyMinimapDecorations: boolean = false): ViewModelDecoration[] {
		return this._decorations.getDecorationsViewportData(visibleRange, onlyMinimapDecorations).decorations;
	}