Merge pull request swiftlang#68817 from kubamracek/embedded-free

[embedded] Fix embedded Swift builds with -Xcc -ffreestanding and -fno-builtin

Author: kubamracek

test/embedded/fno-builtin.swift

@@ -0,0 +1,15 @@
+// RUN: %target-swift-emit-ir %s %S/Inputs/print.swift -module-name main -Xcc -fno-builtin -enable-experimental-feature Embedded | %FileCheck %s
+// RUN: %target-swift-emit-ir %s %S/Inputs/print.swift -module-name main -Xcc -ffreestanding -enable-experimental-feature Embedded | %FileCheck %s
+
+// REQUIRES: swift_in_compiler
+// REQUIRES: VENDOR=apple
+// REQUIRES: OS=macosx
+
+public func foo() -> [Int] {
+	var a = [1, 2, 3]
+	a.append(4)
+	let b = a.sorted()
+	return b
+}
+
+// CHECK: define {{.*}}@"$s4main3fooSaySiGyF"()