Auto merge of #10588 - blyxyas:fix-allow_nonminimal_bool, r=llogiq

Fix `nonminimal_bool` `#[allow]` attributes.

Closes #10435
changelog: [`nonminimal_bool`]: Fix false-positive where the lint ignore `#[allow]` attributes.

r? `@llogiq`

clippy_lints/src/booleans.rs

@@ -7,7 +7,7 @@ use rustc_ast::ast::LitKind;
 use rustc_errors::Applicability;
 use rustc_hir::intravisit::{walk_expr, FnKind, Visitor};
 use rustc_hir::{BinOpKind, Body, Expr, ExprKind, FnDecl, UnOp};
-use rustc_lint::{LateContext, LateLintPass};
+use rustc_lint::{LateContext, LateLintPass, Level};
 use rustc_session::{declare_lint_pass, declare_tool_lint};
 use rustc_span::def_id::LocalDefId;
 use rustc_span::source_map::Span;
@@ -430,6 +430,7 @@ impl<'a, 'tcx> NonminimalBoolVisitor<'a, 'tcx> {
                 }
             }
             let nonminimal_bool_lint = |suggestions: Vec<_>| {
+                if self.cx.tcx.lint_level_at_node(NONMINIMAL_BOOL, e.hir_id).0 != Level::Allow {
                     span_lint_hir_and_then(
                         self.cx,
                         NONMINIMAL_BOOL,
@@ -447,6 +448,7 @@ impl<'a, 'tcx> NonminimalBoolVisitor<'a, 'tcx> {
                             );
                         },
                     );
+                }
             };
             if improvements.is_empty() {
                 let mut visitor = NotSimplificationVisitor { cx: self.cx };
@@ -498,6 +500,7 @@ impl<'a, 'tcx> Visitor<'tcx> for NotSimplificationVisitor<'a, 'tcx> {
         if let ExprKind::Unary(UnOp::Not, inner) = &expr.kind &&
             !inner.span.from_expansion() &&
             let Some(suggestion) = simplify_not(self.cx, inner)
+			&& self.cx.tcx.lint_level_at_node(NONMINIMAL_BOOL, expr.hir_id).0 != Level::Allow
         {
             span_lint_and_sugg(
                 self.cx,

tests/ui/nonminimal_bool.rs

@@ -92,3 +92,21 @@ fn issue_10523_2() {
     }
     if a!() {}
 }
+
+fn issue_10435() {
+    let x = vec![0];
+    let y = vec![1];
+    let z = vec![2];
+
+    // vvv Should not lint
+    #[allow(clippy::nonminimal_bool)]
+    if !x.is_empty() && !(y.is_empty() || z.is_empty()) {
+        println!("{}", line!());
+    }
+
+    // vvv Should not lint (#10435 talks about a bug where it lints)
+    #[allow(clippy::nonminimal_bool)]
+    if !(x == [0]) {
+        println!("{}", line!());
+    }
+}