Fix windows deficiencies in optimizations

Author: asl

test/AutoDiff/compiler_crashers_fixed/issue-62608-conflicting-debug-info.swift

@@ -1,5 +1,7 @@
 // RUN: %target-swift-frontend -emit-sil -O -g %s | %FileCheck %s
 
+// REQUIRES: swift_in_compiler
+
 // Fix for https://github.com/apple/swift/issues/62608
 // We need to emit separate debug info location for different adjoint buffers
 // created for the single input variable