deferred debug info tracking (G104-012)

[Eric Botcazou]

> The attached patch (2 versions) implements it and resolves G104-012 in the
> process, both for the 3.4 and 4.1 back-ends and for the DWARF2 and STABS
> formats.  The GDB testsuite is unmodified on my x86 box for 3.4/DWARF2,
> 3.4/STABS and 4.1/DWARF2.  Half of the regressions (95 out of 190) are
> fixed for 4.1/STABS.

Please disregard, wrong list...

-- 
Eric Botcazou