Rollup merge of #98105 - notriddle:notriddle/tuple-links, r=jsha

rustdoc: remove tuple link on round braces

This is #98069 but for tuples. The reasoning is the same:

* This PR also changes it so that tuples with all-generic elements still link to the primitive.tuple.html page, just like slices. So there still plenty of on-ramps for anybody who doesn't know about it.
* It's too hard to see when round braces are a separate link from the type inside of them.
* It's too hard to click even if you do notice them.

Before:

* impl [ToSocketAddrs](https://doc.rust-lang.org/nightly/std/net/trait.ToSocketAddrs.html) for [(](https://doc.rust-lang.org/nightly/std/primitive.tuple.html)[IpAddr](https://doc.rust-lang.org/nightly/std/net/enum.IpAddr.html), [u16](https://doc.rust-lang.org/nightly/std/primitive.u16.html)[)](https://doc.rust-lang.org/nightly/std/primitive.tuple.html)
* impl<K, V> [FromIterator](https://notriddle.com/notriddle-rustdoc-test/std/iter/trait.FromIterator.html)<[(](https://notriddle.com/notriddle-rustdoc-test/std/primitive.tuple.html)K, V[)](https://notriddle.com/notriddle-rustdoc-test/std/primitive.tuple.html)> for [BTreeMap](https://notriddle.com/notriddle-rustdoc-test/std/collections/struct.BTreeMap.html)<K, V>

After:

* impl [ToSocketAddrs](https://doc.rust-lang.org/nightly/std/net/trait.ToSocketAddrs.html) for ([IpAddr](https://doc.rust-lang.org/nightly/std/net/enum.IpAddr.html), [u16](https://doc.rust-lang.org/nightly/std/primitive.u16.html))
* impl<K, V> [FromIterator](https://notriddle.com/notriddle-rustdoc-test/std/iter/trait.FromIterator.html)<[(K, V)](https://notriddle.com/notriddle-rustdoc-test/std/primitive.tuple.html)> for [BTreeMap](https://notriddle.com/notriddle-rustdoc-test/std/collections/struct.BTreeMap.html)<K, V>

1 files changed, 1 insertions, 3 deletions

diff --git a/src/etc/htmldocck.py b/src/etc/htmldocck.py
index f762e389005..70b6af717cd 100644
--- a/src/etc/htmldocck.py
+++ b/src/etc/htmldocck.py
@@ -417,7 +417,7 @@ def check_snapshot(snapshot_name, actual_tree, normalize_to_text):
     snapshot_path = '{}.{}.{}'.format(rust_test_path[:-3], snapshot_name, 'html')
     try:
         with open(snapshot_path, 'r') as snapshot_file:
-            expected_str = snapshot_file.read()
+            expected_str = snapshot_file.read().replace("{{channel}}", channel)
     except FileNotFoundError:
         if bless:
             expected_str = None
@@ -429,8 +429,6 @@ def check_snapshot(snapshot_name, actual_tree, normalize_to_text):
     else:
         actual_str = flatten(actual_tree)
 
-    expected_str = expected_str.replace("{{channel}}", channel)
-
     # Conditions:
     #  1. Is --bless
     #  2. Are actual and expected tree different