lib: use strict equality comparison

Change '==' to '===' in v8_prof_polyfill.js, punycode.js.
PR-URL: #30898
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: David Carlier <devnexen@gmail.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>

Author: PW486

lib/internal/v8_prof_polyfill.js

@@ -41,7 +41,7 @@ const os = {
 // Filter out vdso and vsyscall entries.
 constarg=args[args.length-1];
 if(arg==='[vdso]'||
-arg=='[vsyscall]'||
+arg==='[vsyscall]'||
 /^[0-9a-f]+-[0-9a-f]+$/.test(arg)){
 return'';
 }

lib/punycode.js

@@ -342,7 +342,7 @@ const encode = function(input) {
 if(currentValue<n&&++delta>maxInt){
 error('overflow');
 }
-if(currentValue==n){
+if(currentValue===n){
 // Represent delta as a generalized variable-length integer.
 letq=delta;
 for(letk=base;/* no condition */;k+=base){
@@ -359,7 +359,7 @@ const encode = function(input) {
 }
 
 output.push(stringFromCharCode(digitToBasic(q,0)));
-bias=adapt(delta,handledCPCountPlusOne,handledCPCount==basicLength);
+bias=adapt(delta,handledCPCountPlusOne,handledCPCount===basicLength);
 delta=0;
 ++handledCPCount;
 }