use matches!() macro in more places

compiler/rustc_const_eval/src/interpret/intrinsics/type_name.rs

@@ -138,10 +138,8 @@ impl<'tcx> Printer<'tcx> for AbsolutePathPrinter<'tcx> {
         args: &[GenericArg<'tcx>],
     ) -> Result<Self::Path, Self::Error> {
         self = print_prefix(self)?;
-        let args = args.iter().cloned().filter(|arg| match arg.unpack() {
-            GenericArgKind::Lifetime(_) => false,
-            _ => true,
-        });
+        let args =
+            args.iter().cloned().filter(|arg| !matches!(arg.unpack(), GenericArgKind::Lifetime(_)));
         if args.clone().next().is_some() {
             self.generic_delimiters(|cx| cx.comma_sep(args))
         } else {

compiler/rustc_const_eval/src/interpret/terminator.rs

@@ -345,10 +345,8 @@ impl<'mir, 'tcx: 'mir, M: Machine<'mir, 'tcx>> InterpCx<'mir, 'tcx, M> {
 
                     // Figure out how to pass which arguments.
                     // The Rust ABI is special: ZST get skipped.
-                    let rust_abi = match caller_abi {
-                        Abi::Rust | Abi::RustCall => true,
-                        _ => false,
-                    };
+                    let rust_abi = matches!(caller_abi, Abi::Rust | Abi::RustCall);
+
                     // We have two iterators: Where the arguments come from,
                     // and where they go to.