ART: Make run tests out of oat tests

Transforms all former oat tests into run tests.

Change-Id: I190dd39456454c36e5538a2c044d993965a67533
diff --git a/test/etc/host-run-test-jar b/test/etc/host-run-test-jar
index d69180b..d72e997 100755
--- a/test/etc/host-run-test-jar
+++ b/test/etc/host-run-test-jar
@@ -183,4 +183,4 @@
 fi
 
 cd $ANDROID_BUILD_TOP
-$mkdir_cmd && $prebuild_cmd && $cmdline "$@"
+$mkdir_cmd && $prebuild_cmd && LD_PRELOAD=libsigchain.so $cmdline "$@"