src/vs/editor/contrib/gotoSymbol/browser/link/goToDefinitionAtPosition.ts/GotoDefinitionAtPositionEditorContribution/getPreviewValue
class GotoDefinitionAtPositionEditorContribution:	private getPreviewValue(textEditorModel: ITextModel, startLineNumber: number, result: LocationLink) {
		let rangeToUse = result.range;
		const numberOfLinesInRange = rangeToUse.endLineNumber - rangeToUse.startLineNumber;
		if (numberOfLinesInRange >= GotoDefinitionAtPositionEditorContribution.MAX_SOURCE_PREVIEW_LINES) {
			rangeToUse = this.getPreviewRangeBasedOnIndentation(textEditorModel, startLineNumber);
		}

		const previewValue = this.stripIndentationFromPreviewRange(textEditorModel, startLineNumber, rangeToUse);
		return previewValue;
	}