Also Changes made in upperEll recipe

Sounds like a bug and should be done in its own PR with added test case that catches it.

Please, resolve conflicts

@rdiachenko Need help here !!
not sure why the test fails for window.

@rdiachenko Need help here !! not sure why the test fails for window.

fixed it!
The issue was that:

• On Windows: System.lineSeparator() returns \r\n
• Space.format() treats \r and \n as separate characters:

case '\n':
case '\r':
    if (inSingleLineComment) {
        // Processes single line comments
        comments.add(new TextComment(false, comment.toString(), prefix.toString(), Markers.EMPTY));
        prefix.setLength(0);
        comment.setLength(0);
        prefix.append(c);
    } else if (!inMultiLineComment) {
        prefix.append(c);
    } else {
        comment.append(c);
    }
    break;

Not sure how it passes initially!
will look raise a separate PR for this fix.

@Anmol202005 please do the following separation:

1. PR that includes fix for UpperEll with corresponding test case. Create a separate issue and fix this under that issue
2. PR that adds AbstractRecipeTestSupport, adds checkstyle dependency and implements verify method. Don't tauch AbstractRecipeTest and other tests
3. PR that updates UpperEllTest to extend from AbstractRecipeTestSupport, remove custom reports and config files, and make it work end-to-end for UpperEllTest only. If you need anything from AbstractRecipeTest, copy it into AbstractRecipeTestSupport
4. PR that updates HeaderTest similar to the previous point. At this point no tests use AbstractRecipeTest, so we can remove it

@Anmol202005 please close this PR if we no longer need it