Rollup merge of #106024 - JulianKnodt:add_term_html_docs, r=notriddle

Fix ICE due to `todo!()` in `rustdoc` for `Term`s

Left a todo awhile ago (I think), so fill it in to print a const for `Term`s.

Fixes #105952.

Should I add some annotations to the rustdoc test?

src/test/rustdoc/issue-105952.rs

@@ -0,0 +1,14 @@
+#![crate_name = "foo"]
+
+#![feature(associated_const_equality)]
+pub enum ParseMode {
+    Raw,
+}
+pub trait Parse {
+    const PARSE_MODE: ParseMode;
+}
+pub trait RenderRaw {}
+
+// @hasraw foo/trait.RenderRaw.html 'impl'
+// @hasraw foo/trait.RenderRaw.html 'ParseMode::Raw'
+impl<T: Parse<PARSE_MODE = { ParseMode::Raw }>> RenderRaw for T {}