apply more code suggestions

jplag.frontend.golang/src/test/java/de/jplag/golang/GoFrontendTest.java

@@ -156,7 +156,7 @@ class GoFrontendTest {
      * @param fileName The file name of the complete code example
      */
     private void testTokenCoverage(List<Token> tokens, String fileName) {
-        var foundTokens = tokens.stream().parallel().mapToInt(Token::getType).sorted().distinct().boxed().toList();
+        var foundTokens = tokens.stream().parallel().map(Token::getType).sorted().distinct().toList();
 
         // Exclude SEPARATOR_TOKEN, as it does not occur
         var missingTokenTypes = IntStream.range(0, GoTokenConstants.NUM_DIFF_TOKENS).filter(i -> i != TokenConstants.SEPARATOR_TOKEN).boxed()

jplag.frontend.scala/src/test/java/de/jplag/scala/ScalaFrontendTest.java

@@ -100,7 +100,7 @@ class ScalaFrontendTest {
             // All lines that contain code
             var codeLines = new ArrayList<>(getCodeLines(lines));
             // All lines that contain token
-            var tokenLines = tokens.stream().mapToInt(Token::getLine).filter(line -> line != Token.NO_VALUE).distinct().boxed().toList();
+            var tokenLines = tokens.stream().map(Token::getLine).filter(line -> line != Token.NO_VALUE).distinct().toList();
 
             // Keep only lines that have no tokens
             codeLines.removeAll(tokenLines);