src/vs/workbench/api/common/extHostLanguageFeatures.ts/ExtHostLanguageFeatures/$provideFoldingRanges
class ExtHostLanguageFeatures:	$provideFoldingRanges(handle: number, resource: UriComponents, context: vscode.FoldingContext, token: CancellationToken): Promise<modes.FoldingRange[] | undefined> {
		return this._withAdapter(handle, FoldingProviderAdapter, adapter => adapter.provideFoldingRanges(URI.revive(resource), context, token), undefined);
	}