Joseph Ferano
4723e49e4d
test_session.ml asserts that a debug session emits the metadata, which is the unpassed-argument defect itself. It cannot see the other half: it is Build.shared that turns the flag into -g and -O0 on the module, and a daemon that dropped Build.debug from its opts would still emit perfect IR and then compile it away — llvm.dbg.declare describes an alloca and mem2reg deletes the alloca, so the symptom would be a module that looks right in every text assertion and has no locals in the debugger. So this drives a real `flan dev --debug`, sends one redefinition, and runs llvm-dwarfdump over the .so the daemon actually wrote. The line table is the needle because it is what a breakpoint in a .flan buffer resolves against, and it names the file the form was typed in rather than anything on disk. Skipped where there is no llvm-dwarfdump.
