Add `#![allow(non_upper_case_globals)]` to the generated `.rs` files.
Before this CL, Rust might warn about some C++ identifiers in the
generated Rust bindings. For example:
```stderr
warning: associated constant `kRed` should have an upper case name
--> crubit/rs_bindings_from_cc/test/golden/types_cc_rust_api.rs:217:15
|
217 | pub const kRed: Color = Color(0);
| ^^^^ help: convert the identifier to upper case: `K_RED`
|
= note: `#[warn(non_upper_case_globals)]` on by default
```
After this CL, such warnings are disabled.
PiperOrigin-RevId: 448320338
diff --git a/rs_bindings_from_cc/test/golden/namespace_rs_api.rs b/rs_bindings_from_cc/test/golden/namespace_rs_api.rs
index 0815592..e04cf8d 100644
--- a/rs_bindings_from_cc/test/golden/namespace_rs_api.rs
+++ b/rs_bindings_from_cc/test/golden/namespace_rs_api.rs
@@ -8,6 +8,7 @@
#![feature(const_ptr_offset_from, custom_inner_attributes, negative_impls)]
#![allow(non_camel_case_types)]
#![allow(non_snake_case)]
+#![allow(non_upper_case_globals)]
use ::std as rust_std;
use memoffset_unstable_const::offset_of;
