Add the other overloadable operations to suspicious_arithmetic_impl

In #2268 I idly mused that the other user-overloadable operations could be added to this lint. Knowing that the lint was arguably incomplete was gnawing at the back of my mind, so I figured that I might as well make this PR, particularly given the change needed was so small.

Author: Ryan1729

clippy_lints/src/suspicious_trait_impl.rs

@@ -86,12 +86,18 @@ impl<'tcx> LateLintPass<'tcx> for SuspiciousImpl {
                 cx,
                 expr,
                 binop.node,
-                &["Add", "Sub", "Mul", "Div"],
+                &["Add", "Sub", "Mul", "Div", "Rem", "BitAnd", "BitOr", "BitXor", "Shl", "Shr"],
                 &[
                     hir::BinOpKind::Add,
                     hir::BinOpKind::Sub,
                     hir::BinOpKind::Mul,
                     hir::BinOpKind::Div,
+                    hir::BinOpKind::Rem,
+                    hir::BinOpKind::BitAnd,
+                    hir::BinOpKind::BitOr,
+                    hir::BinOpKind::BitXor,
+                    hir::BinOpKind::Shl,
+                    hir::BinOpKind::Shr,
                 ],
             ) {
                 span_lint(