Enable the ESLint prefer-spread rule

Note that in a couple of spots the argument could be `undefined` and there we simply disable the rule instead.

Please refer to https://eslint.org/docs/latest/rules/prefer-spread

src/core/evaluator.js

@@ -3717,7 +3717,7 @@ class PartialEvaluator {
               const w2 = (token.charCodeAt(k) << 8) | token.charCodeAt(k + 1);
               str.push(((w1 & 0x3ff) << 10) + (w2 & 0x3ff) + 0x10000);
             }
-            map[charCode] = String.fromCodePoint.apply(String, str);
+            map[charCode] = String.fromCodePoint(...str);
           });
           return new ToUnicodeMap(map);
         },

src/core/jbig2.js

@@ -1478,6 +1478,7 @@ function processSegment(segment, visitor) {
   }
   const callbackName = "on" + header.typeName;
   if (callbackName in visitor) {
+    // eslint-disable-next-line prefer-spread
     visitor[callbackName].apply(visitor, args);
   }
 }
@@ -1636,7 +1637,7 @@ class SimpleSegmentVisitor {
   }
 
   onImmediateLosslessGenericRegion() {
-    this.onImmediateGenericRegion.apply(this, arguments);
+    this.onImmediateGenericRegion(...arguments);
   }
 
   onSymbolDictionary(
@@ -1743,7 +1744,7 @@ class SimpleSegmentVisitor {
   }
 
   onImmediateLosslessTextRegion() {
-    this.onImmediateTextRegion.apply(this, arguments);
+    this.onImmediateTextRegion(...arguments);
   }
 
   onPatternDictionary(dictionary, currentSegment, data, start, end) {
@@ -1788,7 +1789,7 @@ class SimpleSegmentVisitor {
   }
 
   onImmediateLosslessHalftoneRegion() {
-    this.onImmediateHalftoneRegion.apply(this, arguments);
+    this.onImmediateHalftoneRegion(...arguments);
   }
 
   onTables(currentSegment, data, start, end) {

src/core/type1_parser.js

@@ -351,7 +351,7 @@ const Type1CharString = (function Type1CharStringClosure() {
           );
         }
       }
-      this.output.push.apply(this.output, command);
+      this.output.push(...command);
       if (keepStack) {
         this.stack.splice(start, howManyArgs);
       } else {