@@ -192,11 +192,11 @@ mod tests {
192192
193193 #[ test]
194194 fn generated_struct ( ) {
195- let mut inp_impl: syn:: ItemImpl = parse_quote ! (
195+ let inp_impl: syn:: ItemImpl = parse_quote ! (
196196 impl <' a, const CONST : i32 , T > MyStruct <' a, CONST , T > { }
197197 ) ;
198198
199- let rewritten = rewrite_extern_spec_internal ( & mut inp_impl) . unwrap ( ) ;
199+ let rewritten = rewrite_extern_spec_internal ( & inp_impl) . unwrap ( ) ;
200200
201201 let struct_ident = & rewritten. generated_struct . ident ;
202202 let expected: syn:: ItemStruct = parse_quote ! {
@@ -212,15 +212,15 @@ mod tests {
212212
213213 #[ test]
214214 fn impl_no_generics ( ) {
215- let mut inp_impl: syn:: ItemImpl = parse_quote ! (
215+ let inp_impl: syn:: ItemImpl = parse_quote ! (
216216 impl MyStruct {
217217 fn foo( & self ) ;
218218 fn bar( & mut self ) ;
219219 fn baz( self ) ;
220220 }
221221 ) ;
222222
223- let rewritten = rewrite_extern_spec_internal ( & mut inp_impl) . unwrap ( ) ;
223+ let rewritten = rewrite_extern_spec_internal ( & inp_impl) . unwrap ( ) ;
224224
225225 let newtype_ident = & rewritten. generated_struct . ident ;
226226 let expected: syn:: ItemImpl = parse_quote ! {
@@ -251,13 +251,13 @@ mod tests {
251251
252252 #[ test]
253253 fn impl_generics ( ) {
254- let mut inp_impl: syn:: ItemImpl = parse_quote ! (
254+ let inp_impl: syn:: ItemImpl = parse_quote ! (
255255 impl <I , O > MyStruct <I , O , i32 > {
256256 fn foo( & self , arg1: I , arg2: i32 ) -> O ;
257257 }
258258 ) ;
259259
260- let rewritten = rewrite_extern_spec_internal ( & mut inp_impl) . unwrap ( ) ;
260+ let rewritten = rewrite_extern_spec_internal ( & inp_impl) . unwrap ( ) ;
261261
262262 let newtype_ident = & rewritten. generated_struct . ident ;
263263 let expected: syn:: ItemImpl = parse_quote ! {
@@ -276,13 +276,13 @@ mod tests {
276276
277277 #[ test]
278278 fn impl_forwarded_generics ( ) {
279- let mut inp_impl: syn:: ItemImpl = parse_quote ! (
279+ let inp_impl: syn:: ItemImpl = parse_quote ! (
280280 impl MyStruct {
281281 fn foo<T : Copy >( & self ) -> bool ;
282282 }
283283 ) ;
284284
285- let rewritten = rewrite_extern_spec_internal ( & mut inp_impl) . unwrap ( ) ;
285+ let rewritten = rewrite_extern_spec_internal ( & inp_impl) . unwrap ( ) ;
286286
287287 let newtype_ident = & rewritten. generated_struct . ident ;
288288 let expected: syn:: ItemImpl = parse_quote ! {
@@ -305,13 +305,13 @@ mod tests {
305305
306306 #[ test]
307307 fn associated_types ( ) {
308- let mut inp_impl: syn:: ItemImpl = parse_quote ! (
308+ let inp_impl: syn:: ItemImpl = parse_quote ! (
309309 impl MyTrait for MyStruct {
310310 fn foo( & mut self ) -> Self :: Result ;
311311 }
312312 ) ;
313313
314- let rewritten = rewrite_extern_spec_internal ( & mut inp_impl) . unwrap ( ) ;
314+ let rewritten = rewrite_extern_spec_internal ( & inp_impl) . unwrap ( ) ;
315315
316316 let newtype_ident = & rewritten. generated_struct . ident ;
317317 let expected_impl: syn:: ItemImpl = parse_quote ! {
@@ -330,13 +330,13 @@ mod tests {
330330
331331 #[ test]
332332 fn generic_trait ( ) {
333- let mut inp_impl: syn:: ItemImpl = parse_quote ! (
333+ let inp_impl: syn:: ItemImpl = parse_quote ! (
334334 impl MyTrait <Foo > for MyStruct {
335335 fn foo( & mut self , arg1: Foo ) ;
336336 }
337337 ) ;
338338
339- let rewritten = rewrite_extern_spec_internal ( & mut inp_impl) . unwrap ( ) ;
339+ let rewritten = rewrite_extern_spec_internal ( & inp_impl) . unwrap ( ) ;
340340
341341 let newtype_ident = & rewritten. generated_struct . ident ;
342342 let expected_impl: syn:: ItemImpl = parse_quote ! {
@@ -355,13 +355,13 @@ mod tests {
355355
356356 #[ test]
357357 fn generic_blanket_impl ( ) {
358- let mut inp_impl: syn:: ItemImpl = parse_quote ! (
358+ let inp_impl: syn:: ItemImpl = parse_quote ! (
359359 impl <I > MyTrait <I > for MyStruct {
360360 fn foo( & mut self , arg1: I ) ;
361361 }
362362 ) ;
363363
364- let rewritten = rewrite_extern_spec_internal ( & mut inp_impl) . unwrap ( ) ;
364+ let rewritten = rewrite_extern_spec_internal ( & inp_impl) . unwrap ( ) ;
365365
366366 let newtype_ident = & rewritten. generated_struct . ident ;
367367 let expected_impl: syn:: ItemImpl = parse_quote ! {
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