large line number debugging support

[Andrew Cagney]

> Hi.
> I just added support to output stab information in the mono JIT
> compiler: this debugging info is used to debug code generation problems
> and as such the lines in the source code it references are from an
> assembly dump of the CLR programs. For large libraries the assembly
> files can be longer than 2^16 lines and the binary stabs format seems to use
> 16 bits unsigned integers to store line info.
> Is there some kind of know workaround for this problem?
> Splitting the assembly dump would be extremely ugly.


How does dwarf2 go with this?  ``gas -gdwarf2'' will select dwarf2 
assembler debug info.

Andrew