System.Text.Json converter infrastructure improvements for .NET 8

[layomia]

User story tracking converter improvements in .NET 8.

Features

• Developers should have access to System.Text.Json's default internal converters #63791
• [System.Text.Json] JsonConverter lacks ability to specify converter for items in a collection #54189
• Developers should be able to pass state to custom converters. #63795

Performance

• Passing a Stream Utf8JsonWriter to a JsonSerializer.Serialize method results in Pending bytes being misreported #66102

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Issue Details

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User story tracking converter improvements in .NET 8.

Features

• Developers should have access to System.Text.Json's default internal converters #63791
• [System.Text.Json] JsonConverter lacks ability to specify converter for items in a collection #54189
• Developers should be able to pass state to custom converters. #63795

Performance

• Passing a Stream Utf8JsonWriter to a JsonSerializer.Serialize method results in Pending bytes being misreported #66102

Bug fixes

• System.Text.Json custom converter for Dictionary<string, object> collides with JsonExtensionData #60560
• JsonConverter inconsistency when deserializing into property without public getter #56212
• Internal json converters cannot function independently of their original options #50205
• JsonStringEnumConverter ignores 'allowIntegerValues' when deserializing quoted numeric values #58247
• Guard against invalid TypeToConvert args to read methods of object and collection converter #36605
• System.Text.Json does not fill JsonExtensionData when a property with the same name already exists or has the JsonIgnoreAttribute #68895
• Json source generator should support JsonConverter on non-nullable and nullable types #66547

Author:	layomia
Assignees:	-
Labels:	area-System.Text.Json, User Story
Milestone:	8.0.0