rustc asserts on `extern fn main() {}`

[bstrie]

A file with nothing but extern fn main() {} gives this:

rustc: /media/linhaus/rust/src/llvm/lib/IR/Instructions.cpp:276: void llvm::CallInst::init(llvm::Value*, llvm::ArrayRef<llvm::Value*>, const llvm::Twine&): Assertion `(Args.size() == FTy->getNumParams() || (FTy->isVarArg() && Args.size() > FTy->getNumParams())) && "Calling a function with bad signature!"' failed.
Aborted

[alexcrichton]

Closed in 31114ac