Fix/compile not in memory (#3573)

* Example of allocated artifact
* Better error when Instancing fail because of OS/Arch issue
* Add missing brnach for new error
---------

Co-authored-by: Syrus Akbary <me@syrusakbary.com>

lib/api/src/sys/instance.rs

@@ -67,6 +67,11 @@ pub enum InstantiationError {
     /// This error occurs when an import from a different store is used.
     #[error("cannot mix imports from different stores")]
     DifferentStores,
+
+    /// Import from a different Store.
+    /// This error occurs when an import from a different store is used.
+    #[error("incorrect OS or architecture")]
+    DifferentArchOS,
 }
 
 impl From<wasmer_compiler::InstantiationError> for InstantiationError {

lib/api/src/sys/module.rs

@@ -317,6 +317,11 @@ impl Module {
         store: &mut impl AsStoreMut,
         imports: &[crate::Extern],
     ) -> Result<VMInstance, InstantiationError> {
+        if !self.artifact.allocated() {
+            // Return an error mentioning that the artifact is compiled for a different
+            // platform.
+            return Err(InstantiationError::DifferentArchOS);
+        }
         // Ensure all imports come from the same context.
         for import in imports {
             if !import.is_from_store(store) {