LLVM assertion when creating region pointer for bare self value

[jdm]

type FontTableTag = u32;

trait FontTableTagConversions {
  fn tag_to_str(self);
}

impl FontTableTagConversions for FontTableTag {
  fn tag_to_str(self) {
    &self;
  }
}

fn main() {
    5.tag_to_str();
}

rustc: /run/media/jdm/ssd/rust/src/llvm/lib/VMCore/Instructions.cpp:2383: static llvm::CastInst* llvm::CastInst::CreatePointerCast(llvm::Value*, llvm::Type*, const llvm::Twine&, llvm::Instruction*): Assertion S->getType()->isPointerTy() && "Invalid cast"' failed.`

[graydon]

assigning bug; change assignment if you disagree

[catamorphism]

Reproduced with efd1438

[Blei]

This seems to be fixed on 887ae82 (linux 64).