add module hover for primitives

src/hover/feature.rs

@@ -528,7 +528,34 @@ fn hover_primitives_module_declaration(
     #[allow(unused)]
     def_path: &str
 ) -> Option<Hover> {
-    None
+    let primitive_map = server.srcs.primitive_text.name_to_text.read().unwrap();
+
+    if let Some(text) = primitive_map.get(token_name) {
+        let mut markdowns = Vec::<MarkedString>::new();
+
+        let mut lines: Vec<&str> = text.split_inclusive('\n').collect();
+
+        if lines.len() > 1 {
+            lines.remove(0);
+            lines.pop();
+        }
+
+        let profile_markdown = LanguageString {
+            language: "systemverilog".to_string(),
+            value: lines.join("")
+        };
+
+        markdowns.push(MarkedString::LanguageString(profile_markdown));
+
+        let hover = Hover {
+            contents: HoverContents::Array(markdowns),
+            range: None
+        };
+
+        Some(hover)
+    } else {
+        None
+    }
 }