Tweak for FunctionTypeImpl.==.

pkg/analyzer/lib/src/generated/element.dart

Index: pkg/analyzer/lib/src/generated/element.dart
diff --git a/pkg/analyzer/lib/src/generated/element.dart b/pkg/analyzer/lib/src/generated/element.dart
index 23bbf66a188df2272fdb5cd79ca96f44a106997a..0c939a3d2df40d97f835fa5ff9713ac64236e7f5 100644
--- a/pkg/analyzer/lib/src/generated/element.dart
+++ b/pkg/analyzer/lib/src/generated/element.dart
@@ -4902,12 +4902,12 @@ class FunctionTypeImpl extends TypeImpl implements FunctionType {
       return false;
     }
     FunctionTypeImpl otherType = object as FunctionTypeImpl;
-    return TypeImpl.equalArrays(
+    return returnType == otherType.returnType &&
+        TypeImpl.equalArrays(
             normalParameterTypes, otherType.normalParameterTypes) &&
         TypeImpl.equalArrays(
             optionalParameterTypes, otherType.optionalParameterTypes) &&
-        _equals(namedParameterTypes, otherType.namedParameterTypes) &&
-        returnType == otherType.returnType;
+        _equals(namedParameterTypes, otherType.namedParameterTypes);
   }
 
   @override