Fix PartialEq for Value in opentelemetry-stdout

PartialEq's previous implementation called back to
itself with the same arguments. Here we extract the
underlying value and compare them.

If the enum types are different, it returns false.

Author: fiadliel

opentelemetry-stdout/src/common.rs

@@ -86,9 +86,21 @@ pub(crate) enum Value {
 
 impl PartialEq for Value {
     fn eq(&self, other: &Self) -> bool {
-        match (&self, &other) {
+        match (self, other) {
+            (Value::Bool(b), Value::Bool(ob)) => b.eq(ob),
+            (Value::Int(i), Value::Int(oi)) => i.eq(oi),
             (Value::Double(f), Value::Double(of)) => OrderedFloat(*f).eq(&OrderedFloat(*of)),
-            (non_double, other_non_double) => non_double.eq(other_non_double),
+            (Value::String(s), Value::String(os)) => s.eq(os),
+            (Value::Array(a), Value::Array(oa)) => a.eq(oa),
+            (Value::KeyValues(kv), Value::KeyValues(okv)) => kv.eq(okv),
+            (Value::BytesValue(b), Value::BytesValue(ob)) => b.eq(ob),
+            (Value::Bool(_), _) => false,
+            (Value::Int(_), _) => false,
+            (Value::Double(_), _) => false,
+            (Value::String(_), _) => false,
+            (Value::Array(_), _) => false,
+            (Value::KeyValues(_), _) => false,
+            (Value::BytesValue(_), _) => false,
         }
     }
 }