Fixed the generated C# for an array of const char*.

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

src/Generator/Generators/CSharp/CSharpMarshal.cs

@@ -464,6 +464,9 @@ namespace CppSharp.Generators.CSharp
                         supportBefore.WriteCloseBraceIndent();
                     }
                     break;
+                case ArrayType.ArraySize.Incomplete:
+                    Context.Return.Write(Context.Parameter.Name);
+                    break;
                 default:
                     Context.Return.Write("null");
                     break;

src/Generator/Generators/CSharp/CSharpTypePrinter.cs

@@ -90,11 +90,10 @@ namespace CppSharp.Generators.CSharp
         public override TypePrinterResult VisitArrayType(ArrayType array,
             TypeQualifiers quals)
         {
+            Type arrayType = array.Type.Desugar();
             if (ContextKind == TypePrinterContextKind.Native &&
                 array.SizeType == ArrayType.ArraySize.Constant)
             {
-                Type arrayType = array.Type.Desugar();
-
                 PrimitiveType primitiveType;
                 if ((arrayType.IsPointerToPrimitiveType(out primitiveType) &&
                     !(arrayType is FunctionType)) || 
@@ -148,10 +147,13 @@ namespace CppSharp.Generators.CSharp
 
             // const char* and const char[] are the same so we can use a string
             if (array.SizeType == ArrayType.ArraySize.Incomplete &&
-                array.Type.Desugar().IsPrimitiveType(PrimitiveType.Char) &&
+                arrayType.IsPrimitiveType(PrimitiveType.Char) &&
                 array.QualifiedType.Qualifiers.IsConst)
                 return "string";
 
+            if (arrayType.IsPointerToPrimitiveType(PrimitiveType.Char))
+                return "char**";
+
             return string.Format("{0}{1}", array.Type.Visit(this),
                 array.SizeType == ArrayType.ArraySize.Constant ? "[]" :
                    (ContextKind == TypePrinterContextKind.Managed ? "*" : string.Empty));

tests/CSharp/CSharp.cpp

@@ -1306,3 +1306,7 @@ void HasGetterAndOverriddenSetter::setBaseSetter(int value)
 {
     field = value;
 }
+
+void hasArrayOfConstChar(const char* const arrayOfConstChar[])
+{
+}

tests/CSharp/CSharp.h

@@ -1149,3 +1149,5 @@ public:
 protected:
     int field;
 };
+
+void DLL_API hasArrayOfConstChar(const char* const arrayOfConstChar[]);