profiler: declare missing printErr

`v8/tools/tickprocessor.js` assumes presence of global `printErr`, which is defined in `d8`. PR-URL: #13590 Reviewed-By: Colin Ihrig <cjihrig@gmail.com> Reviewed-By: Anna Henningsen <anna@addaleax.net> Reviewed-By: Refael Ackermann <refack@gmail.com> Reviewed-By: Tobias Nießen <tniessen@tnie.de>

Author: indutny

lib/internal/v8_prof_processor.js

@@ -18,6 +18,11 @@ scriptFiles.forEach(function(s) {
  script += process.binding('natives')[s] + '\n';
 });
 
+// eslint-disable-next-line no-unused-vars
+function printErr(err) {
+ console.error(err);
+}
+
 const tickArguments = [];
 if (process.platform === 'darwin') {
  tickArguments.push('--mac');