add missing commas

Author: matthew-wong1

naga/src/proc/constant_evaluator.rs

@@ -1817,14 +1817,14 @@ impl<'a> ConstantEvaluator<'a> {
                                 } else {
                                     a.wrapping_div(b)
                                 }
-                            }
+                            },
                             BinaryOperator::Modulo => {
                                 if b == 0 {
                                     return Err(ConstantEvaluatorError::RemainderByZero);
                                 } else {
                                     a.wrapping_rem(b)
                                 }
-                            }
+                            },
                             BinaryOperator::And => a & b,
                             BinaryOperator::ExclusiveOr => a ^ b,
                             BinaryOperator::InclusiveOr => a | b,