ConfigureHttpClientDefaults isn't an extension method in the reference assembly

[davidfowl]

This PR added ConfigureHttpClientDefaults but it turns out there's a ref/def mismatch that's causing this API to only show up as a static method instead of an extension method:

Ref:
https://github.com/dotnet/runtime/blob/3bda6e0013ddb5b48a7b2a89fd84bf4fbbed0e37/src/libraries/Microsoft.Extensions.Http/ref/Microsoft.Extensions.Http.cs#L60C83-L60C105

Def:

runtime/src/libraries/Microsoft.Extensions.Http/src/DependencyInjection/HttpClientFactoryServiceCollectionExtensions.cs

Line 80 in 3bda6e0

public static IServiceCollection ConfigureHttpClientDefaults(this IServiceCollection services, Action<IHttpClientBuilder> configure)

cc @karelz @JamesNK @CarnaViire @stephentoub

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Issue Details

---

This PR added ConfigureHttpClientDefaults but it turns out there's a ref/def mismatch that's causing this API to only show up as a static method instead of an extension method:

Ref:
https://github.com/dotnet/runtime/blob/3bda6e0013ddb5b48a7b2a89fd84bf4fbbed0e37/src/libraries/Microsoft.Extensions.Http/ref/Microsoft.Extensions.Http.cs#L60C83-L60C105

Def:

runtime/src/libraries/Microsoft.Extensions.Http/src/DependencyInjection/HttpClientFactoryServiceCollectionExtensions.cs

Line 80 in 3bda6e0

public static IServiceCollection ConfigureHttpClientDefaults(this IServiceCollection services, Action<IHttpClientBuilder> configure)

cc @karelz @JamesNK @CarnaViire @stephentoub

Author:	davidfowl
Assignees:	-
Labels:	untriaged, area-Extensions-HttpClientFactory, needs-area-label
Milestone:	-

[ShreyasJejurkar]

I wonder why PublicApiAnalyzer didn't fail this or warn about it!? 🤔

[CarnaViire]

Reopening for backport