Remove redundant parentheses around SequenceExpression and AssignmentExpression (#18142)

changelog_unreleased/javascript/18142.md

@@ -0,0 +1,27 @@
+#### Remove redundant parentheses in "return statement" (#18142 by @fisker)
+
+<!-- prettier-ignore -->
+```jsx
+// Input
+function sequenceExpressionInside() {
+  return ( // Reason for a
+    a, b
+  );
+}
+
+// Prettier stable
+function sequenceExpressionInside() {
+  return (
+    // Reason for a
+    (a, b)
+  );
+}
+
+// Prettier main
+function sequenceExpressionInside() {
+  return (
+    // Reason for a
+    a, b
+  );
+}
+```