message: Reset the value stack correctly when entering the 'else' side of an if-else.
diff: @@ -1818,6 +1818,13 @@ impl<'ctx, 'a> LLVMFunctionCodeGenerator<'ctx, 'a> {
  self.builder.position_at_end(*if_else_block);
  self.state.reachable = true;
  +
  + if let ControlFrame::IfElse { else_phis, .. } = self.state.frame_at_depth(0)? {
  + // Push our own 'else' phi nodes to the stack.
  + for phi in else_phis.clone().iter() {
  + self.state.push1(phi.as_basic_value());
  + }
  + };
  }
  Operator::End => {
  