8267844: Replace Integer/Long.valueOf() with Integer/Long.parse*() where applicable

Reviewed-by: redestad

src/java.base/share/classes/java/lang/Integer.java

@@ -1413,7 +1413,7 @@ public final class Integer extends Number
         int radix = 10;
         int index = 0;
         boolean negative = false;
-        Integer result;
+        int result;
 
         if (nm.isEmpty())
             throw new NumberFormatException("Zero length string");
@@ -1443,15 +1443,15 @@ public final class Integer extends Number
             throw new NumberFormatException("Sign character in wrong position");
 
         try {
-            result = Integer.valueOf(nm.substring(index), radix);
-            result = negative ? Integer.valueOf(-result.intValue()) : result;
+            result = parseInt(nm, index, nm.length(), radix);
+            result = negative ? -result : result;
         } catch (NumberFormatException e) {
             // If number is Integer.MIN_VALUE, we'll end up here. The next line
             // handles this case, and causes any genuine format error to be
             // rethrown.
             String constant = negative ? ("-" + nm.substring(index))
                                        : nm.substring(index);
-            result = Integer.valueOf(constant, radix);
+            result = parseInt(constant, radix);
         }
         return result;
     }