Fix type name display.

src/lib.rs

@@ -154,6 +154,8 @@ pub use eval::EvalContext;
 pub use func::{NativeCallContext, RegisterNativeFunction};
 pub use module::{FnNamespace, Module};
 pub use tokenizer::Position;
+#[cfg(not(feature = "no_std"))]
+pub use types::Instant;
 pub use types::{
     Dynamic, EvalAltResult, FnPtr, ImmutableString, LexError, ParseError, ParseErrorType, Scope,
 };