src/vs/editor/common/viewModel/viewModelImpl.ts/ViewModel/getValueLengthInRange
class ViewModel:	public getValueLengthInRange(range: Range, eol: EndOfLinePreference): number {
		const modelRange = this.coordinatesConverter.convertViewRangeToModelRange(range);
		return this.model.getValueLengthInRange(modelRange, eol);
	}