src/vs/workbench/api/common/extHostLanguageFeatures.ts/ExtHostLanguageFeatures/$provideImplementation
class ExtHostLanguageFeatures:	$provideImplementation(handle: number, resource: UriComponents, position: IPosition, token: CancellationToken): Promise<modes.LocationLink[]> {
		return this._withAdapter(handle, ImplementationAdapter, adapter => adapter.provideImplementation(URI.revive(resource), position, token), []);
	}