[MIPS] Fix symbols being filtered out from target side of diff if target object contains .NON_MATCHING markers (#250)

* Fix filtering out symbols from the target side that have a symbol with the same name and a `.NON_MATCHING` suffix.

- Target side: Show all the symbols except the `.NON_MATCHING` ones.
- Base side: Ignore all the `.NON_MATCHING` symbols and also ignore the ones with the same name without the suffix

* fmt

* comment

* tests

* fmt tests

* maybe this could fix wasm?

* Fix wasm?

* fmt

* Move `DiffSide` to `diff` mod

* Update the stuff the advisories CI told me to

objdiff-core/src/diff/mod.rs

@@ -807,3 +807,11 @@ fn find_section(
         s.kind == section_kind && s.name == name && !matches.iter().any(|m| m.right == Some(i))
     })
 }
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash)]
+pub enum DiffSide {
+    /// The target/expected side of the diff.
+    Target,
+    /// The base side of the diff.
+    Base,
+}