runtime: Don't skip verification for -Xverify:soft-fail

When forcing the interpreter into access checks mode,
make sure that the regular verification is still run,
giving the verifier an opportunity to throw a VerifyError.

If verification would've succeeded (without -Xverify:soft-fail flag),
override this and soft-fail, to force the interpreter-with-access-checks to be run
instead of the normal faster interpreter.

This fixes the following run-tests under the interpeter-access-checks:
* 135
* 412
* 471
* 506
* 800

Bug: 22414682
Change-Id: I5cb86a8bba71c7af9361a63c0802786c852b857b
diff --git a/runtime/mirror/class.cc b/runtime/mirror/class.cc
index b97d994..cdc6204 100644
--- a/runtime/mirror/class.cc
+++ b/runtime/mirror/class.cc
@@ -800,11 +800,11 @@
   return nullptr;
 }
 
-void Class::SetPreverifiedFlagOnAllMethods(size_t pointer_size) {
+void Class::SetSkipAccessChecksFlagOnAllMethods(size_t pointer_size) {
   DCHECK(IsVerified());
   for (auto& m : GetMethods(pointer_size)) {
     if (!m.IsNative() && m.IsInvokable()) {
-      m.SetPreverified();
+      m.SetSkipAccessChecks();
     }
   }
 }