Remove wfness requirement from anon consts used by asm

Author: nbdd0121

compiler/rustc_typeck/src/check/expr.rs

@@ -2591,10 +2591,10 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                         self.check_expr_asm_operand(out_expr, false);
                     }
                 }
-                hir::InlineAsmOperand::Const { anon_const }
-                | hir::InlineAsmOperand::SymFn { anon_const } => {
-                    self.to_const(anon_const);
-                }
+                // `AnonConst`s have their own body and is type-checked separately.
+                // As they don't flow into the type system we don't need them to
+                // be well-formed.
+                hir::InlineAsmOperand::Const { .. } | hir::InlineAsmOperand::SymFn { .. } => {}
                 hir::InlineAsmOperand::SymStatic { .. } => {}
             }
         }