assert: use less read operations

This reduces the total amount of reads when using `assert.ok()` with
a falsy value. That increases the read performance significantly.
Also remove a comment that can not be addressed.
PR-URL: #27525
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>

Author: BridgeAR

lib/assert.js

@@ -172,8 +172,8 @@ function getCode(fd, line, column) {
 letlines=0;
 // Prevent blocking the event loop by limiting the maximum amount of
 // data that may be read.
-letmaxReads=64;// bytesPerRead * maxReads = 512 kb
-constbytesPerRead=8192;
+letmaxReads=32;// bytesPerRead * maxReads = 512 kb
+constbytesPerRead=16384;
 // Use a single buffer up front that is reused until the call site is found.
 letbuffer=Buffer.allocUnsafe(bytesPerRead);
 while(maxReads--!==0){
@@ -619,11 +619,6 @@ function checkIsPromise(obj) {
 // Accept native ES6 promises and promises that are implemented in a similar
 // way. Do not accept thenables that use a function as `obj` and that have no
 // `catch` handler.
-
-// TODO: thenables are checked up until they have the correct methods,
-// but according to documentation, the `then` method should receive
-// the `fulfill` and `reject` arguments as well or it may be never resolved.
-
 returnisPromise(obj)||
 obj!==null&&typeofobj==='object'&&
 typeofobj.then==='function'&&