[spv-in] Give entry point function the same name as entry point itself

src/front/spv/function.rs

@@ -189,7 +189,7 @@ impl<I: Iterator<Item = u32>> super::Parser<I> {
         if let Some(ep) = self.lookup_entry_point.remove(&fun_id) {
             // create a wrapping function
             let mut function = crate::Function {
-                name: None,
+                name: Some(format!("{}_wrap", ep.name)),
                 arguments: Vec::new(),
                 result: None,
                 local_variables: Arena::new(),

tests/out/shadow.ron

@@ -1512,7 +1512,7 @@
             early_depth_test: None,
             workgroup_size: (0, 0, 0),
             function: (
-                name: None,
+                name: Some("fs_main_wrap"),
                 arguments: [
                     (
                         name: Some("in_normal_fs"),