Fix: #2604, Fix: #2240, Fix: #2341, Fix #1355 - Better error handling and and spaces handling in autofmt (#2736)

* add new autofmt sample
* Feat: implement rustfmt::skip support for rsx
* generally improve error handling with better expect messages
* wip: nested rsx formatting and expression formatting
* nested rsx formatting works
* collapse autofmt crate
* cast indent through macros
* use proper whitespace
* no more eating comments!
* Use proper error handling

packages/rsx/src/ifmt.rs

@@ -17,12 +17,6 @@ pub struct IfmtInput {
     pub segments: Vec<Segment>,
 }
 
-impl Default for IfmtInput {
-    fn default() -> Self {
-        Self::new(Span::call_site())
-    }
-}
-
 impl IfmtInput {
     pub fn new(span: Span) -> Self {
         Self {
@@ -213,7 +207,7 @@ impl ToTokens for IfmtInput {
     fn to_tokens(&self, tokens: &mut TokenStream) {
         // If the input is a string literal, we can just return it
         if let Some(static_str) = self.to_static() {
-            return static_str.to_tokens(tokens);
+            return quote_spanned! { self.span() => #static_str }.to_tokens(tokens);
         }
 
         // Try to turn it into a single _.to_string() call