Include countme crate to count important data structures.

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

@@ -2,6 +2,7 @@
 //! errors.
 
 use std::{
+    env,
     path::PathBuf,
     time::{SystemTime, UNIX_EPOCH},
 };
@@ -295,6 +296,10 @@ impl AnalysisStatsCmd {
             report_metric("total memory", memory.allocated.megabytes() as u64, "MB");
         }
 
+        if env::var("RA_COUNT").is_ok() {
+            eprintln!("{}", profile::countme::get_all());
+        }
+
         if self.memory_usage && verbosity.is_verbose() {
             print_memory_usage(host, vfs);
         }