Support cfg overrides in all workspace kind

crates/rust-analyzer/src/cli/rustc_tests.rs

@@ -81,6 +81,7 @@ impl Tester {
             rustc_cfg: vec![],
             toolchain: None,
             target_layout: data_layout.map(Arc::from).map_err(|it| Arc::from(it.to_string())),
+            cfg_overrides: Default::default(),
         };
         let load_cargo_config = LoadCargoConfig {
             load_out_dirs_from_check: false,

crates/rust-analyzer/src/reload.rs

@@ -234,6 +234,7 @@ impl GlobalState {
                                 it.clone(),
                                 cargo_config.target.as_deref(),
                                 &cargo_config.extra_env,
+                                &cargo_config.cfg_overrides,
                             ))
                         }
                     })