auto merge of #10923 : boredomist/rust/export-summary-members, r=alexcrichton

Several of the members of `extra::stats::Summary` were calculated and tested, but not exposed externally. This change exposes all of the members.

Author: bors

src/libextra/stats.rs

@@ -105,23 +105,18 @@ pub trait Stats {
 #[deriving(Clone, Eq)]
 #[allow(missing_doc)]
 pub struct Summary {
-    priv sum: f64,
-    // public
+    sum: f64,
     min: f64,
-    // public
     max: f64,
-    priv mean: f64,
-    // public
+    mean: f64,
     median: f64,
-    priv var: f64,
-    priv std_dev: f64,
-    priv std_dev_pct: f64,
-    // public
+    var: f64,
+    std_dev: f64,
+    std_dev_pct: f64,
     median_abs_dev: f64,
-    // public
     median_abs_dev_pct: f64,
-    priv quartiles: (f64,f64,f64),
-    priv iqr: f64,
+    quartiles: (f64,f64,f64),
+    iqr: f64,
 }
 
 impl Summary {