[LLVMdev] emitting dwarf debug info on mach fails with assert

[Carlo Kok]

Compiling the IR code at http://pastebin.com/hSwdLdD0 for target triple
x86_64-apple-macosx
fails with :
   assert(Symbol->isUndefined() && "Cannot define a symbol twice!");

`anon'::MCMachOStreamer::EmitLabel(llvm::MCSymbol * Symbol)
llvm::DwarfDebug::emitDebugInfo()  Line 1752 + 0x3c bytes	C++
llvm::DwarfDebug::endModule()  Line 865	C++
llvm::AsmPrinter::doFinalization(llvm::Module & M)  Line 878	C++
llvm::FPPassManager::doFinalization(llvm::Module & M)  Line 1536
llvm::FPPassManager::runOnModule(llvm::Module & M)  Line 1520
llvm::MPPassManager::runOnModule(llvm::Module & M)  Line 1572
llvm::PassManagerImpl::run(llvm::Module & M)  Line 1655
llvm::PassManager::run(llvm::Module & M)  Line 1685	C++
LLVMTargetMachineEmitToFile(LLVMTargetMachine * T, LLVMOpaqueModule * M, 
char * Filename, LLVMCodeGenFileType codegen, char * * ErrorMessage) 
Line 194	C++

There are two "CodeFile1.pas" files in the same IR file, however they're 
in different directories so that should be fine, from a debuggers pov.

Is this something I'm doing wrong, or a bug, and if a bug, how can I 
help fix it?