Add a profile call when calling db.crate_def_map

Example output:

```
  244ms - handle_inlay_hints
      162ms - get_inlay_hints
          162ms - SourceAnalyzer::new
               69ms - def_with_body_from_child_node
                   69ms - analyze_container
                       69ms - analyze_container
                           69ms - Module::from_definition
                               69ms - Module::from_file
                                   69ms - db.crate_def_map
                                        0ms - parse_macro_query (6 calls)
                                        0ms - raw_items_query (1 calls)
                                       69ms - ???
```

The interesting thing is that `crate_def_map_query` is not even called
and spot-checking the dependencies, it seems that all of the
query-functions already do call `profile` themselves. Is all this time
spent in salsa itself? (checking if recomputation is needed)

Signed-off-by: Michal Terepeta <michal.terepeta@gmail.com>

crates/ra_hir/src/from_source.rs

@@ -213,7 +213,10 @@ impl Module {
     fn from_file(db: &impl DefDatabase, file: FileId) -> Option<Self> {
         let _p = profile("Module::from_file");
         let (krate, local_id) = db.relevant_crates(file).iter().find_map(|&crate_id| {
-            let crate_def_map = db.crate_def_map(crate_id);
+            let crate_def_map = {
+                let _p = profile("db.crate_def_map");
+                db.crate_def_map(crate_id)
+            };
             let local_id = crate_def_map.modules_for_file(file).next()?;
             Some((crate_id, local_id))
         })?;