Switch the Into impls over to From.

Author: bodil

src/boxed.rs

@@ -163,11 +163,11 @@ impl From<String> for BoxedString {
     }
 }
 
-impl Into<String> for BoxedString {
-    fn into(self) -> String {
+impl From<BoxedString> for String {
+    fn from(s: BoxedString) -> Self {
         #[allow(unsafe_code)]
-        let s = unsafe { String::from_raw_parts(self.ptr.as_ptr(), self.len(), self.capacity()) };
-        forget(self);
-        s
+        let out = unsafe { String::from_raw_parts(s.ptr.as_ptr(), s.len(), s.capacity()) };
+        forget(s);
+        out
     }
 }

src/lib.rs

@@ -865,12 +865,12 @@ impl<Mode: SmartStringMode> FromStr for SmartString<Mode> {
     }
 }
 
-impl<Mode: SmartStringMode> Into<String> for SmartString<Mode> {
+impl<Mode: SmartStringMode> From<SmartString<Mode>> for String {
     /// Unwrap a boxed [`String`][String], or copy an inline string into a new [`String`][String].
     ///
     /// [String]: https://doc.rust-lang.org/std/string/struct.String.html
-    fn into(self) -> String {
-        match self.cast_into() {
+    fn from(s: SmartString<Mode>) -> Self {
+        match s.cast_into() {
             StringCastInto::Boxed(string) => string.into(),
             StringCastInto::Inline(string) => string.to_string(),
         }