librustc: De-@mut n_monos in the stats

src/librustc/middle/trans/base.rs

@@ -3251,7 +3251,7 @@ pub fn trans_crate(sess: session::Session,
         println!("n_real_glues: {}", ccx.stats.n_real_glues.get());
 
         println!("n_fns: {}", ccx.stats.n_fns.get());
-        println!("n_monos: {}", ccx.stats.n_monos);
+        println!("n_monos: {}", ccx.stats.n_monos.get());
         println!("n_inlines: {}", ccx.stats.n_inlines);
         println!("n_closures: {}", ccx.stats.n_closures);
         println("fn stats:");

src/librustc/middle/trans/common.rs

@@ -131,7 +131,7 @@ pub struct Stats {
     n_null_glues: Cell<uint>,
     n_real_glues: Cell<uint>,
     n_fns: Cell<uint>,
-    n_monos: uint,
+    n_monos: Cell<uint>,
     n_inlines: uint,
     n_closures: uint,
     n_llvm_insns: uint,

src/librustc/middle/trans/context.rs

@@ -216,7 +216,7 @@ impl CrateContext {
                     n_null_glues: Cell::new(0u),
                     n_real_glues: Cell::new(0u),
                     n_fns: Cell::new(0u),
-                    n_monos: 0u,
+                    n_monos: Cell::new(0u),
                     n_inlines: 0u,
                     n_closures: 0u,
                     n_llvm_insns: 0u,

src/librustc/middle/trans/monomorphize.rs

@@ -182,7 +182,7 @@ pub fn monomorphic_fn(ccx: @CrateContext,
         _ => fail!("expected bare rust fn or an intrinsic")
     };
 
-    ccx.stats.n_monos += 1;
+    ccx.stats.n_monos.set(ccx.stats.n_monos.get() + 1);
 
     let depth;
     {