refactor(linter/js-plugins): rename specifiers to paths (#12241)

Follow-on after #12160. Pure refactor.

Use vars called `paths` when they're the full path of plugins. `specifiers` is what we're calling the things which appear in plugins array in config, which can be either bare specifiers or relative paths (`my-plugin` or `../plugins/my-plugin.js`).

Author: overlookmotel

crates/oxc_linter/src/external_plugin_store.rs

@@ -46,30 +46,29 @@ impl ExternalRuleId {
 
 #[derive(Debug, Default)]
 pub struct ExternalPluginStore {
-    registered_plugin_specifiers: FxHashSet<String>,
+    registered_plugin_paths: FxHashSet<String>,
 
     plugins: IndexVec<ExternalPluginId, ExternalPlugin>,
     plugin_names: FxHashMap<String, ExternalPluginId>,
     rules: IndexVec<ExternalRuleId, ExternalRule>,
 }
 
 impl ExternalPluginStore {
-    pub fn is_plugin_registered(&self, plugin_specifier: &str) -> bool {
-        self.registered_plugin_specifiers.contains(plugin_specifier)
+    pub fn is_plugin_registered(&self, plugin_path: &str) -> bool {
+        self.registered_plugin_paths.contains(plugin_path)
     }
 
     /// # Panics
     /// Panics if you use it wrong
     pub fn register_plugin(
         &mut self,
-        plugin_specifier: String,
+        plugin_path: String,
         plugin_name: String,
         offset: usize,
         rules: Vec<String>,
     ) {
-        let registered_plugin_specifier_newly_inserted =
-            self.registered_plugin_specifiers.insert(plugin_specifier);
-        assert!(registered_plugin_specifier_newly_inserted);
+        let newly_inserted = self.registered_plugin_paths.insert(plugin_path);
+        assert!(newly_inserted);
 
         let plugin_id: ExternalPluginId = self
             .plugins