UseMemberBody more strict with expressions

[PhenX]

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[Copilot]

Pull request overview

This PR tightens and extends [Projectable(UseMemberBody = ...)] handling in the source generator (including allowing projectable properties to delegate to Expression<TDelegate> properties), adds/updates corresponding generator tests and snapshots, and updates runtime query rewriting to include navigation members in generated projections.

Changes:

• Add generator support + tests for projectable properties delegating to Expression<TDelegate> properties via UseMemberBody.
• Make UseMemberBody expression-property compatibility checks stricter (argument counts/return types/parameter types).
• Refactor generator body-processing helpers; update runtime projection member list to include navigations/skip navigations.

Reviewed changes

Copilot reviewed 7 out of 7 changed files in this pull request and generated 4 comments.

Show a summary per file

File	Description
tests/EntityFrameworkCore.Projectables.Generator.Tests/UseMemberBodyTests.cs	Adds new valid/invalid test cases for expression-property bodies (incl. projectable properties).
tests/EntityFrameworkCore.Projectables.Generator.Tests/UseMemberBodyTests.Property_UsesExpressionPropertyBody_InstanceProperty.verified.txt	New snapshot verifying generated output for property delegated to an expression property.
src/EntityFrameworkCore.Projectables/Services/ProjectableExpressionReplacer.cs	Extends projection member enumeration to include navigations/skip navigations.
src/EntityFrameworkCore.Projectables.Generator/ProjectableInterpreter.cs	Adds dispatch for projectable properties backed by Expression<TDelegate> properties.
src/EntityFrameworkCore.Projectables.Generator/ProjectableInterpreter.MemberBodyResolver.cs	Expands/strengthens resolution logic for UseMemberBody expression-property candidates.
src/EntityFrameworkCore.Projectables.Generator/ProjectableInterpreter.Helpers.cs	New helper utilities for parameter/type-parameter handling and property getter expression extraction.
src/EntityFrameworkCore.Projectables.Generator/ProjectableInterpreter.BodyProcessors.cs	Refactors body processors and adds property-specific expression-property handling (incl. parameter renaming).

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Pull request overview

Copilot reviewed 6 out of 6 changed files in this pull request and generated 2 comments.

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Pull request overview

Copilot reviewed 11 out of 11 changed files in this pull request and generated 2 comments.

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Pull request overview

Copilot reviewed 16 out of 16 changed files in this pull request and generated 1 comment.