Cast result to nullable type for response data #3929

[ogazioglu]

When nullable annotations are enabled and GenerateNullableReferenceTypes is true, the code below is generated and causes following compiler warning :

Actual Generated Code:

var result_ = (string)System.Convert.ChangeType(responseData_, typeof(string));

Compiler Warning:

warning CS8600: Converting null literal or possible null value to non-nullable type.

But in this configuration, it should be generated as below:

Expected Generated Code:

var result_ = (string?)System.Convert.ChangeType(responseData_, typeof(string));

This fix correctly generates code and resolves the compiler warning.

[RicoSuter]

Is there a fix without using ? NRT as the generator should also work with pre-NRT C# versions?