Native async patching is not available in .NET Standard or .NET

[Nihlus]

Describe the bug
The Async method type and its associated helpers are not available outside of .NET Framework due to the use of the NET45_OR_GREATER compile-time definition. This define is not set in .NET Standard or modern .NET despite the name suggesting as such at first glance. These targets support asynchronous code and should have the code available.

Adding NETSTANDARD1_0_OR_GREATER and NETCOREAPP1_0_OR_GREATER as || options to the #if clauses should resolve the issue.

To Reproduce
Steps to reproduce the behavior:

1. Install Harmony's prerelease in a .NET Standard or .NET project (not .NET Framework)
2. Attempt to use an Async method target or AccessTools.AsyncMoveNext
3. Observe compile error

Expected behavior
The functionality should be available.

Screenshots / Code
If applicable, add material to help explain your problem.

Runtime environment (please complete the following information):

• OS: Linux Mint 21
• .NET 7
• Harmony 2.3.0-prerelease.2

[pardeike]

Can you verify with master that this is no longer a problem?

[Nihlus]

Yep, seems to work fine.