fix: short expr lists should not eat the final exprs

packages/autofmt/tests/samples.rs

@@ -38,5 +38,6 @@ twoway![
     ifchain_forloop,
     t2,
     reallylong,
-    immediate_expr
+    immediate_expr,
+    collapse_expr
 ];

packages/autofmt/tests/samples/collapse_expr.rsx

@@ -0,0 +1,4 @@
+fn itworks() {
+    rsx!( "{name}", "{name}", "{name}" )
+}
+