removed lint for division/modulo for literal 0

Author: henil

clippy_lints/src/arithmetic.rs

@@ -90,12 +90,7 @@ impl<'tcx> LateLintPass<'tcx> for Arithmetic {
                 if l_ty.peel_refs().is_integral() && r_ty.peel_refs().is_integral() {
                     match op.node {
                         hir::BinOpKind::Div | hir::BinOpKind::Rem => match &r.kind {
-                            hir::ExprKind::Lit(lit) => {
-                                if let rustc_ast::ast::LitKind::Int(0, _) = lit.node {
-                                    span_lint(cx, INTEGER_ARITHMETIC, expr.span, "integer arithmetic detected");
-                                    self.expr_span = Some(expr.span);
-                                }
-                            },
+                            hir::ExprKind::Lit(_lit) => (),
                             hir::ExprKind::Unary(hir::UnOp::UnNeg, expr) => {
                                 if let hir::ExprKind::Lit(lit) = &expr.kind {
                                     if let rustc_ast::ast::LitKind::Int(1, _) = lit.node {

tests/ui/integer_arithmetic.stderr

@@ -75,12 +75,6 @@ error: integer arithmetic detected
 LL |     i *= 2;
    |     ^^^^^^
 
-error: integer arithmetic detected
-  --> $DIR/integer_arithmetic.rs:37:5
-   |
-LL |     i /= 0;
-   |     ^^^^^^
-
 error: integer arithmetic detected
   --> $DIR/integer_arithmetic.rs:38:11
    |
@@ -99,12 +93,6 @@ error: integer arithmetic detected
 LL |     i /= var2;
    |     ^^^^^^^^^
 
-error: integer arithmetic detected
-  --> $DIR/integer_arithmetic.rs:42:5
-   |
-LL |     i %= 0;
-   |     ^^^^^^
-
 error: integer arithmetic detected
   --> $DIR/integer_arithmetic.rs:43:11
    |
@@ -177,5 +165,5 @@ error: integer arithmetic detected
 LL |     (&x + &y)
    |     ^^^^^^^^^
 
-error: aborting due to 29 previous errors
+error: aborting due to 27 previous errors