Ignored abstract operators because they cannot be wrapped in Mono/.NET.

Signed-off-by: Dimitar Dobrev <dpldobrev@protonmail.com>

src/Generator/Driver.cs

@@ -308,6 +308,7 @@ namespace CppSharp
 
             TranslationUnitPasses.AddPass(new FindSymbolsPass());
             TranslationUnitPasses.AddPass(new CheckStaticClass());
+            TranslationUnitPasses.AddPass(new IgnoreAbstractOperatorsPass());
             TranslationUnitPasses.AddPass(new MoveOperatorToClassPass());
             TranslationUnitPasses.AddPass(new MoveFunctionToClassPass());
             TranslationUnitPasses.AddPass(new GenerateAnonymousDelegatesPass());

src/Generator/Passes/IgnoreAbstractOperatorsPass.cs

@@ -0,0 +1,18 @@
+using CppSharp.AST;
+
+namespace CppSharp.Passes
+{
+    public class IgnoreAbstractOperatorsPass : TranslationUnitPass
+    {
+        public override bool VisitMethodDecl(Method method)
+        {
+            if (!base.VisitMethodDecl(method) || method.TranslationUnit.IsSystemHeader)
+                return false;
+
+            if (method.IsPure && method.IsOperator)
+                method.ExplicitlyIgnore();
+
+            return true;
+        }
+    }
+}

tests/Common/Common.h

@@ -1117,3 +1117,9 @@ private:
     SpecialisesVoid<void>* s;
     SpecialisesVoidInUnion<void>* h;
 };
+
+class DLL_API HasAbstractOperator
+{
+public:
+    virtual bool operator==(const HasAbstractOperator& other) = 0;
+};