UseMemberBody to use the body of another member

tests/EntityFrameworkCore.Projectables.FunctionalTests/UseMemberBodyPropertyTests.UseMemberPropertyExpression.verified.txt

@@ -0,0 +1,2 @@
+SELECT [e].[Id] * 3
+FROM [Entity] AS [e]

tests/EntityFrameworkCore.Projectables.FunctionalTests/UseMemberBodyPropertyTests.UseMemberPropertyGenerated.verified.txt

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+SELECT [e].[Id] * 2
+FROM [Entity] AS [e]

tests/EntityFrameworkCore.Projectables.FunctionalTests/UseMemberBodyPropertyTests.cs

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+using System;
+using System.Collections.Generic;
+using System.Data.SqlTypes;
+using System.IO;
+using System.Linq;
+using System.Linq.Expressions;
+using System.Text;
+using System.Threading.Tasks;
+using EntityFrameworkCore.Projectables.FunctionalTests.Helpers;
+using Microsoft.EntityFrameworkCore;
+using ScenarioTests;
+using VerifyXunit;
+using Xunit;
+
+namespace EntityFrameworkCore.Projectables.FunctionalTests
+{
+    [UsesVerify]
+    public class UseMemberBodyPropertyTests
+    {
+        public record Entity
+        {
+            public int Id { get; set; }
+            
+            [Projectable(UseMemberBody = nameof(Computed2))]
+            public int Computed1 => Id;
+
+            private int Computed2 => Id * 2;
+
+            [Projectable(UseMemberBody = nameof(Computed4))]
+            public int Computed3 => Id;
+
+            private static Expression<Func<Entity, int>> Computed4 => x => x.Id * 3;
+        }
+
+        [Fact]
+        public Task UseMemberPropertyGenerated()
+        {
+            using var dbContext = new SampleDbContext<Entity>();
+
+            var query = dbContext.Set<Entity>()
+                .Select(x => x.Computed1);
+
+            return Verifier.Verify(query.ToQueryString());
+        }
+
+        [Fact]
+        public Task UseMemberPropertyExpression()
+        {
+            using var dbContext = new SampleDbContext<Entity>();
+
+            var query = dbContext.Set<Entity>()
+                .Select(x => x.Computed3);
+
+            return Verifier.Verify(query.ToQueryString());
+        }
+    }
+}