Add From<bool> for int types

Author: Clar Charr

Diff for: src/libcore/num/mod.rs

@@ -4454,6 +4454,20 @@ macro_rules! impl_from {
     }
 }
 
+// Bool -> Any
+impl_from! { bool, u8, #[stable(feature = "from_bool", since = "1.28.0")] }
+impl_from! { bool, u16, #[stable(feature = "from_bool", since = "1.28.0")] }
+impl_from! { bool, u32, #[stable(feature = "from_bool", since = "1.28.0")] }
+impl_from! { bool, u64, #[stable(feature = "from_bool", since = "1.28.0")] }
+impl_from! { bool, u128, #[stable(feature = "from_bool", since = "1.28.0")] }
+impl_from! { bool, usize, #[stable(feature = "from_bool", since = "1.28.0")] }
+impl_from! { bool, i8, #[stable(feature = "from_bool", since = "1.28.0")] }
+impl_from! { bool, i16, #[stable(feature = "from_bool", since = "1.28.0")] }
+impl_from! { bool, i32, #[stable(feature = "from_bool", since = "1.28.0")] }
+impl_from! { bool, i64, #[stable(feature = "from_bool", since = "1.28.0")] }
+impl_from! { bool, i128, #[stable(feature = "from_bool", since = "1.28.0")] }
+impl_from! { bool, isize, #[stable(feature = "from_bool", since = "1.28.0")] }
+
 // Unsigned -> Unsigned
 impl_from! { u8, u16, #[stable(feature = "lossless_int_conv", since = "1.5.0")] }
 impl_from! { u8, u32, #[stable(feature = "lossless_int_conv", since = "1.5.0")] }