In the current javadoc tests under langtools/test/jdk/javadoc/tool,
the following tests are written as tool tests, these tests are technically not javadoc tools tests and should be converted to doclet tests using the doclet testing framework in test/jdk/javadoc/doclet/lib/JavadocTester, and also relocate these to the langtools/test/jdk/javadoc/doclet folder.

Some of these tests could be overloaded with testNewLanguageFeatures which
already exercises Varargs, enums etc, and some of them may need a discrete
folder.

jdk/javadoc/tool/enum/docComments/Main.java
jdk/javadoc/tool/enum/enumType/Main.java
jdk/javadoc/tool/varArgs/Main.java
jdk/javadoc/tool/T6551367.java

Note: lose the JBS ids in the test folders and names.