Fixes to autofmt, make it more aggressive (#2230)

* fix: fmt unterminated if, be more aggressive with line splits

* Fix: Handle long exprs in for/if statements

packages/autofmt/tests/samples.rs

@@ -46,4 +46,8 @@ twoway![
     tinynoopt,
     trailing_expr,
     many_exprs,
+    shorthand,
+    docsite,
+    letsome,
+    fat_exprs,
 ];