Revert "Revert "Full-stack integrity: check vdex contents.""

bug: 30972906

Initial revert due to 'check' file of the test needing updating for target tests.

This reverts commit a19b7649faf8780737be7ce3ec48a12d81c6d69f.

Change-Id: I455780bd88cd89ff80c9084d399e2beeb819b95f
diff --git a/compiler/compiler.h b/compiler/compiler.h
index b92bff6..a17e2b5 100644
--- a/compiler/compiler.h
+++ b/compiler/compiler.h
@@ -39,6 +39,12 @@
 class OatWriter;
 class Thread;
 
+enum class CopyOption {
+  kNever,
+  kAlways,
+  kOnlyIfCompressed
+};
+
 class Compiler {
  public:
   enum Kind {