// (3,2): error CS8652: The feature 'nullable reference types' is currently in Preview and *unsupported*. To use Preview features, use the 'preview' language version.
// (4,2): error CS8652: The feature 'nullable reference types' is currently in Preview and *unsupported*. To use Preview features, use the 'preview' language version.
// (5,2): error CS8652: The feature 'nullable reference types' is currently in Preview and *unsupported*. To use Preview features, use the 'preview' language version.
// (6,20): error CS8652: The feature 'object generic type constraint' is currently in Preview and *unsupported*. To use Preview features, use the 'preview' language version.
// where T1 : object
Diagnostic(ErrorCode.ERR_FeatureInPreview, "object").WithArguments("object generic type constraint").WithLocation(6, 20),
// (7,16): error CS8652: The feature 'nullable reference types' is currently in Preview and *unsupported*. To use Preview features, use the 'preview' language version.
// (7,20): error CS8652: The feature 'object generic type constraint' is currently in Preview and *unsupported*. To use Preview features, use the 'preview' language version.
// where T2 : object
Diagnostic(ErrorCode.ERR_FeatureInPreview, "object").WithArguments("object generic type constraint").WithLocation(7, 20),
// (8,20): error CS8652: The feature 'object generic type constraint' is currently in Preview and *unsupported*. To use Preview features, use the 'preview' language version.
// where T3 : object
Diagnostic(ErrorCode.ERR_FeatureInPreview, "object").WithArguments("object generic type constraint").WithLocation(8, 20),
// (8,20): error CS8652: The feature 'object generic type constraint' is currently in Preview and *unsupported*. To use Preview features, use the 'preview' language version.
// where T1 : object
Diagnostic(ErrorCode.ERR_FeatureInPreview, "object").WithArguments("object generic type constraint").WithLocation(8, 20),
// (8,33): error CS8652: The feature 'nullable reference types' is currently in Preview and *unsupported*. To use Preview features, use the 'preview' language version.
// (9,20): error CS8652: The feature 'object generic type constraint' is currently in Preview and *unsupported*. To use Preview features, use the 'preview' language version.
// where T4 : object
Diagnostic(ErrorCode.ERR_FeatureInPreview, "object").WithArguments("object generic type constraint").WithLocation(9, 20),
// (9,20): error CS8652: The feature 'object generic type constraint' is currently in Preview and *unsupported*. To use Preview features, use the 'preview' language version.
// where T2 : object
Diagnostic(ErrorCode.ERR_FeatureInPreview, "object").WithArguments("object generic type constraint").WithLocation(9, 20),
// (10,20): error CS8652: The feature 'object generic type constraint' is currently in Preview and *unsupported*. To use Preview features, use the 'preview' language version.
// where T5 : object
Diagnostic(ErrorCode.ERR_FeatureInPreview, "object").WithArguments("object generic type constraint").WithLocation(10, 20),
// (11,20): error CS8652: The feature 'object generic type constraint' is currently in Preview and *unsupported*. To use Preview features, use the 'preview' language version.
// where T6 : object
Diagnostic(ErrorCode.ERR_FeatureInPreview, "object").WithArguments("object generic type constraint").WithLocation(11, 20),
// (12,20): error CS8652: The feature 'object generic type constraint' is currently in Preview and *unsupported*. To use Preview features, use the 'preview' language version.
// where T7 : object
Diagnostic(ErrorCode.ERR_FeatureInPreview, "object").WithArguments("object generic type constraint").WithLocation(12, 20));