Build and run tests during bootstrap

Change-Id: If40489d74136af4d15d4ff26210a50975a462497
diff --git a/bootstrap.bash b/bootstrap.bash
index e9a6436..f6056d6 100755
--- a/bootstrap.bash
+++ b/bootstrap.bash
@@ -4,6 +4,7 @@
 export SRCDIR=$(dirname "${BASH_SOURCE[0]}")
 export TOPNAME="Android.bp"
 export BOOTSTRAP_MANIFEST="${SRCDIR}/build/soong/build.ninja.in"
+export RUN_TESTS="-t"
 
 case $(uname) in
     Linux)