Refactor the interface check to use explicit loop instead of LINQ

Author: oroztocil

src/Validation/gen/Parsers/ValidationsGenerator.TypesParser.cs

@@ -304,7 +304,16 @@ internal static bool HasValidationAttributes(ISymbol symbol, WellKnownTypes well
 
     internal static bool HasIValidatableObjectInterface(ITypeSymbol typeSymbol, WellKnownTypes wellKnownTypes)
     {
-        return typeSymbol.AllInterfaces.Any(i =>
-            SymbolEqualityComparer.Default.Equals(i, wellKnownTypes.Get(WellKnownTypeData.WellKnownType.System_ComponentModel_DataAnnotations_IValidatableObject)));
+        var validatableObjectSymbol = wellKnownTypes.Get(WellKnownTypeData.WellKnownType.System_ComponentModel_DataAnnotations_IValidatableObject);
+
+        foreach (var inter in typeSymbol.AllInterfaces)
+        {
+            if (SymbolEqualityComparer.Default.Equals(inter, validatableObjectSymbol))
+            {
+                return true;
+            }
+        }
+
+        return false;
     }
 }