speclatively use stdlib to have automatic no_std compatibility

src/error.rs

@@ -3,10 +3,7 @@
 use crate::result::EvalAltResult;
 use crate::token::Position;
 
-use crate::stdlib::{boxed::Box, char, error::Error, fmt, string::String};
+use crate::stdlib::{boxed::Box, char, error::Error, fmt, string::{String, ToString}};
-
-#[cfg(feature = "no_std")]
-use crate::alloc::string::ToString;
 
 /// Error when tokenizing the script text.
 #[derive(Debug, Eq, PartialEq, Clone, Hash)]

src/packages/array_basic.rs

@@ -8,10 +8,7 @@ use crate::parser::{ImmutableString, INT};
 use crate::result::EvalAltResult;
 use crate::token::Position;
 
-use crate::stdlib::{any::TypeId, boxed::Box};
+use crate::stdlib::{any::TypeId, boxed::Box, string::ToString};
-
-#[cfg(feature = "no_std")]
-use crate::alloc::string::ToString;
 
 // Register array utility functions
 fn push<T: Variant + Clone>(list: &mut Array, item: T) -> FuncReturn<()> {

src/packages/string_more.rs

@@ -10,11 +10,9 @@ use crate::utils::StaticVec;
 #[cfg(not(feature = "no_index"))]
 use crate::engine::Array;
 
-#[cfg(feature = "no_std")]
-use crate::alloc::boxed::Box;
-
 use crate::stdlib::{
     any::TypeId,
+    boxed::Box,
     fmt::Display,
     format,
     string::{String, ToString},