rustdoc: tweak stability summary counting

This commit slightly tweaks the counting of impl blocks and structs for
the stability summary (so that the block itself isn't counted for
inherent impls, and the fields aren't counted for structs).

1 files changed, 1 insertions, 2 deletions

diff --git a/src/librustdoc/stability_summary.rs b/src/librustdoc/stability_summary.rs
index b0e1aeea3a1..058d8b81f7a 100644
--- a/src/librustdoc/stability_summary.rs
+++ b/src/librustdoc/stability_summary.rs
@@ -146,13 +146,12 @@ fn summarize_item(item: &Item) -> (Counts, Option<ModuleSummary>) {
     // considered to have no children.
     match item.inner {
         // Require explicit `pub` to be visible
-        StructItem(Struct { fields: ref subitems, .. }) |
         ImplItem(Impl { items: ref subitems, trait_: None, .. }) => {
             let subcounts = subitems.iter().filter(|i| visible(*i))
                                            .map(summarize_item)
                                            .map(|s| s.val0())
                                            .fold(Counts::zero(), |acc, x| acc + x);
-            (item_counts + subcounts, None)
+            (subcounts, None)
         }
         // `pub` automatically
         EnumItem(Enum { variants: ref subitems, .. }) => {