Make wasm related error constants public

Author: josephlr

src/error.rs

@@ -35,10 +35,14 @@ impl Error {
     pub(crate) const RTL_GEN_RANDOM_FAILED: Error = internal_error!(4);
     pub(crate) const FAILED_RDRAND: Error = internal_error!(5);
     pub(crate) const NO_RDRAND: Error = internal_error!(6);
-    pub(crate) const BINDGEN_CRYPTO_UNDEF: Error = internal_error!(7);
-    pub(crate) const BINDGEN_GRV_UNDEF: Error = internal_error!(8);
-    pub(crate) const STDWEB_NO_RNG: Error = internal_error!(9);
-    pub(crate) const STDWEB_RNG_FAILED: Error = internal_error!(10);
+    #[doc(hidden)]
+    pub const BINDGEN_CRYPTO_UNDEF: Error = internal_error!(7);
+    #[doc(hidden)]
+    pub const BINDGEN_GRV_UNDEF: Error = internal_error!(8);
+    #[doc(hidden)]
+    pub const STDWEB_NO_RNG: Error = internal_error!(9);
+    #[doc(hidden)]
+    pub const STDWEB_RNG_FAILED: Error = internal_error!(10);
 
     #[deprecated(since = "0.1.7")]
     /// Unknown error.