Incorrect line number from tag file

[albert-github]

In the ACE TAO project we see a lot of warnings like:

.../ACE_TAO/ACE/html/libtao-doc/TAO.tag:1: error: Internal inconsistency: namespace in IDL not module, library or constant group

the line number 1 is here incorrect and should be 54613, 55152 or 55345.
The reason is that the real line number is not stored although it is available from the xml reader

(the reason for the warning is another issue and should be handled separately)

[doxygen]

Hi Albert, can you attach the tag file that gives this error? I'd like to reproduce the problem and try to solve it using XMLLocator instead of passing an extra lineNr parameter.

[albert-github]

I've made a small example showing the problem (artificial, based on the actual TAO code but a bit smaller).
In the old version we see

tst.tag:1: error: Internal inconsistency: namespace in IDL not module, library or constant group

though this is the incorrect line and should be (as it is in the corrected version):

tst.tag:28: error: Internal inconsistency: namespace in IDL not module, library or constant group

Example: example.tar.gz

[doxygen]

@albert-github I've just pushed a slightly adapted implementation using the m_locator object for the line number (see 0b6a075 ).
Please verify that it works the same as your proposal.

[albert-github]

Looks OK to me and is a bit simpler as now the info is available at the "source.

Wouldn't it be better to initialize the int linenr (e.g. to -1 or 0) in the tagreader.cpp` at the lines 93 and 108.