ART: PIC testing

Adds run-test support for PIC testing.

For the core image, enable with ART_TEST_PIC_IMAGE=true.
For the tests themselves, enable with ART_TEST_PIC_TEST=true.
Off by default.

Bug: 18035729
Change-Id: I23e396a2fa47b9471145f45b3c63f447871ebebf
diff --git a/build/Android.common_test.mk b/build/Android.common_test.mk
index ca718f1..2493565 100644
--- a/build/Android.common_test.mk
+++ b/build/Android.common_test.mk
@@ -63,6 +63,12 @@
 # Do you want optimizing compiler tests run?
 ART_TEST_OPTIMIZING ?= $(ART_TEST_FULL)
 
+# Do we want to test a PIC-compiled core image?
+ART_TEST_PIC_IMAGE ?= $(ART_TEST_FULL)
+
+# Do we want to test PIC-compiled tests ("apps")?
+ART_TEST_PIC_TEST ?= $(ART_TEST_FULL)
+
 # Do you want tracing tests run?
 ART_TEST_TRACE ?= $(ART_TEST_FULL)