Issue #17882: Update {@index} of JavadocCommentsTokenTypes to new AST format

[KishorMore-2005]

Issue #17882

JAVADOC -> JAVADOC
`--JAVADOC_CONTENT -> JAVADOC_CONTENT
    |--NEWLINE -> \n
    |--LEADING_ASTERISK ->      *
    |--TEXT ->  {@code {@index}} inline tag.
    |--NEWLINE -> \n
    |--LEADING_ASTERISK ->      *
    |--NEWLINE -> \n
    |--LEADING_ASTERISK ->      *
    |--TEXT ->  
    |--JAVADOC_BLOCK_TAG -> JAVADOC_BLOCK_TAG
    |   `--PARAM_BLOCK_TAG -> PARAM_BLOCK_TAG
    |       |--AT_SIGN -> @
    |       |--TAG_NAME -> param
    |       |--TEXT ->  
    |       |--PARAMETER_NAME -> value
    |       `--DESCRIPTION -> DESCRIPTION
    |           `--TEXT ->  The parameter of the method.

[romani]

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[KishorMore-2005]

@romani How to solve these error "https://circleci.com/gh/checkstyle/checkstyle/1100967"

[romani]

thanks a lot .

last:

[romani]

plase remove |-- and related | under it.
shift tree to the left.

[romani]

Item

[romani]

I don't see INDEX_INLINE_TAG in tree

[romani]

Item

[romani]

Instead of "index" that might look like javadoc specific, use "someName" to make it clear that it is not existing tag