src/vs/editor/browser/widget/codeEditorWidget.ts/CodeEditorWidget/_getVerticalOffsetForPosition
class CodeEditorWidget:	private static _getVerticalOffsetForPosition(modelData: ModelData, modelLineNumber: number, modelColumn: number, includeViewZones: boolean = false): number {
		const modelPosition = modelData.model.validatePosition({
			lineNumber: modelLineNumber,
			column: modelColumn
		});
		const viewPosition = modelData.viewModel.coordinatesConverter.convertModelPositionToViewPosition(modelPosition);
		return modelData.viewModel.viewLayout.getVerticalOffsetForLineNumber(viewPosition.lineNumber, includeViewZones);
	}