wrapper: fix FromStr implementation

Author: dr-orlovsky

src/lib.rs

@@ -832,7 +832,7 @@ pub fn derive_wrapper(input: TokenStream) -> TokenStream {
 ///     Display
 /// )]
 /// #[display(inner)]
-/// #[wrapper(NumberFmt, MathOps, BoolOps)]
+/// #[wrapper(NumberFmt, MathOps, BoolOps, FromStr)]
 /// #[wrapper_mut(MathAssign, BitAssign)]
 /// struct Int64(i64);
 /// ```

src/wrapper.rs

@@ -269,7 +269,7 @@ impl Wrapper {
                     #[inline]
                     fn from_str(s: &str) -> Result<Self, Self::Err> {
                         use ::core::str::FromStr;
-                        FromStr::from_str(s).map(Self::from)
+                        <#from as FromStr>::from_str(s).map(Self::from)
                     }
                 }
             },