(132084216) Make AnySortComparator.== not infinitely recursive (swiftlang#755)

* (132084216) Make AnySortComparator.== not infinitely recursive

* Fix build failures

Author: jmschonfeld

Sources/FoundationEssentials/SortComparator.swift

@@ -133,7 +133,7 @@ package struct AnySortComparator: SortComparator, Sendable {
             return l == rr
         }
 
-        return compare(lhs, rhs)
+        return compare(lhs._base, rhs._base)
     }
 }
 

Tests/FoundationEssentialsTests/SortComparatorTests.swift

@@ -50,5 +50,17 @@ class SortComparatorTests: XCTestCase {
         XCTAssertEqual(
             compareOptions.compare("test2", "test005"),
             "test2".compare("test005", options: [.numeric]))
-    }    
+    }
+    
+    func testAnySortComparatorEquality() {
+        let a: ComparableComparator<Int> = ComparableComparator<Int>()
+        let b: ComparableComparator<Int> = ComparableComparator<Int>(order: .reverse)
+        let c: ComparableComparator<Double> = ComparableComparator<Double>()
+        XCTAssertEqual(AnySortComparator(a), AnySortComparator(a))
+        XCTAssertEqual(AnySortComparator(b), AnySortComparator(b))
+        XCTAssertEqual(AnySortComparator(c), AnySortComparator(c))
+        XCTAssertNotEqual(AnySortComparator(a), AnySortComparator(b))
+        XCTAssertNotEqual(AnySortComparator(b), AnySortComparator(c))
+        XCTAssertNotEqual(AnySortComparator(a), AnySortComparator(c))
+    }
 }