feat: replace Expression with Func for memberSelector

[vbreuss]

The memberSelector in For/Which/Whose now accepts a Func<T, TMember?> instead of Expression<Func<T, TMember?>> which allows more use cases to be met.

[Copilot]

Pull Request Overview

This PR replaces expression-based member selectors with simple Func<T,TMember?> delegates for For/Which/Whose methods, adding [CallerArgumentExpression] to capture the member path and a new FromFuncAsMemberAccessor helper.

• Changed API signatures in tests and source to use Func<T, TMember?> and an extra string parameter via CallerArgumentExpression.
• Introduced MemberAccessor.FromFuncAsMemberAccessor with ExtractMemberPath to parse the lambda expression text.
• Updated all For, Which, and Whose implementations to call the new accessor and pass the captured expression string.

Reviewed Changes

Copilot reviewed 9 out of 9 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
Tests/aweXpect.Core.Api.Tests/Expected/aweXpect.Core_netstandard2.0.txt	Updated expected API to include FromFuncAsMemberAccessor and CallerArgumentExpression parameters.
Tests/aweXpect.Core.Api.Tests/Expected/aweXpect.Core_net8.0.txt	Same as above for .NET 8.0
Tests/aweXpect.Api.Tests/Expected/aweXpect_netstandard2.0.txt	Updated For extension to use Func selector and CallerArgumentExpression.
Tests/aweXpect.Api.Tests/Expected/aweXpect_net8.0.txt	Same as above for .NET 8.0
Source/aweXpect/That/ThatGeneric.For.cs	Switched For to use Func<T,TMember?>, added [CallerArgumentExpression], and updated accessor.
Source/aweXpect.Core/Results/AndOrWhichResult.cs	Updated Which/AndWhich to Func-based selectors and CallerArgumentExpression.
Source/aweXpect.Core/Results/AndOrWhoseResult.cs	Updated Whose/AndWhose to Func-based selectors and CallerArgumentExpression.
Source/aweXpect.Core/Delegates/ThatDelegateThrows.Whose.cs	Updated Whose on delegates to use Func-based selector with CallerArgumentExpression.
Source/aweXpect.Core/Core/MemberAccessor.cs	Added FromFuncAsMemberAccessor, ExtractMemberPath, and XML doc for the new method.

Comments suppressed due to low confidence (3)

Source/aweXpect/That/ThatGeneric.For.cs:18

• [nitpick] The parameter name 'doNotPopulateThisValue' is unclear to API consumers; consider renaming it to something like 'memberSelectorExpression' to better convey its purpose.

		[CallerArgumentExpression("memberSelector")] string doNotPopulateThisValue = "")

Source/aweXpect.Core/Core/MemberAccessor.cs:66

• Add XML documentation for 'ExtractMemberPath' explaining the expected format of 'name' (i.e., the lambda expression text) and what the returned string represents.

	private static string ExtractMemberPath(string name)

Source/aweXpect.Core/Core/MemberAccessor.cs:69

• The logic in 'ExtractMemberPath' is somewhat brittle and may not handle nested or more complex expressions correctly; consider simplifying the algorithm or adding inline comments to clarify each step.

		int idx = name.IndexOf("=>", StringComparison.Ordinal);

[github-actions]

Test Results

    4 files   -     34      4 suites   - 34   26s ⏱️ - 2m 13s
  897 tests  - 12 749    896 ✅  - 12 748  1 💤  - 1  0 ❌ ±0 
2 577 runs   - 35 403  2 576 ✅  - 35 402  1 💤  - 1  0 ❌ ±0 

Results for commit 0f8d425. ± Comparison against base commit 27c997b.

♻️ This comment has been updated with latest results.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
91.7% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarQube Cloud

[github-actions]

This is addressed in release v2.18.0.