build(ariadne): vendor serde crates

third_party/crates/serde_json-1.0.151/tests/regression/issue979.rs

@@ -0,0 +1,29 @@
+use serde::de::{Deserializer, EnumAccess, VariantAccess, Visitor};
+use std::fmt;
+
+struct EnumVisitor;
+
+impl<'de> Visitor<'de> for EnumVisitor {
+    type Value = (Vec<bool>, ());
+
+    fn expecting(&self, formatter: &mut fmt::Formatter) -> fmt::Result {
+        formatter.write_str("enum")
+    }
+
+    fn visit_enum<A>(self, data: A) -> Result<Self::Value, A::Error>
+    where
+        A: EnumAccess<'de>,
+    {
+        let (key, variant) = data.variant()?;
+        variant.newtype_variant::<()>()?;
+        Ok((key, ()))
+    }
+}
+
+#[test]
+fn test() {
+    let mut de = serde_json::Deserializer::from_str("{[true]: null}");
+    let err = de.deserialize_enum("name", &[], EnumVisitor).unwrap_err();
+
+    assert!(err.to_string().contains("key must be a string"));
+}