Refactor if let chains to matches! macro

src/cargo/core/resolver/types.rs

@@ -299,34 +299,22 @@ pub enum ConflictReason {
 
 impl ConflictReason {
     pub fn is_links(&self) -> bool {
-        if let ConflictReason::Links(_) = *self {
-            return true;
-        }
-        false
+        matches!(self, ConflictReason::Links(_))
     }
 
     pub fn is_missing_features(&self) -> bool {
-        if let ConflictReason::MissingFeatures(_) = *self {
-            return true;
-        }
-        false
+        matches!(self, ConflictReason::MissingFeatures(_))
     }
 
     pub fn is_required_dependency_as_features(&self) -> bool {
-        if let ConflictReason::RequiredDependencyAsFeature(_) = *self {
-            return true;
-        }
-        false
+        matches!(self, ConflictReason::RequiredDependencyAsFeature(_))
     }
 
     pub fn is_public_dependency(&self) -> bool {
-        if let ConflictReason::PublicDependency(_) = *self {
-            return true;
-        }
-        if let ConflictReason::PubliclyExports(_) = *self {
-            return true;
-        }
-        false
+        matches!(
+            self,
+            ConflictReason::PublicDependency(_) | ConflictReason::PubliclyExports(_)
+        )
     }
 }