Improve error message for failed function compiles (#4340)

* Improve error message for failed function compiles

Add in the wasm function index, the name if specified, and the function
offset in the original file to assist in debugging failed function compiles.

* Review commments

crates/wasmtime/src/module.rs

@@ -374,9 +374,21 @@ impl Module {
         let functions = functions.into_iter().collect::<Vec<_>>();
         let funcs = engine
             .run_maybe_parallel(functions, |(index, func)| {
+                let offset = func.body.range().start;
                 engine
                     .compiler()
                     .compile_function(&translation, index, func, tunables, types)
+                    .with_context(|| {
+                        let index = translation.module.func_index(index);
+                        let name = match translation.debuginfo.name_section.func_names.get(&index) {
+                            Some(name) => format!(" (`{}`)", name),
+                            None => String::new(),
+                        };
+                        let index = index.as_u32();
+                        format!(
+                            "failed to compile wasm function {index}{name} at offset {offset:#x}"
+                        )
+                    })
             })?
             .into_iter()
             .collect();