Make java 8 run-tests runnable on the RI again.

Test: Ran ./run-test --jvm 960

Change-Id: Ib281d7b117e793116137fffcd3b0392b79497503
diff --git a/test/etc/default-build b/test/etc/default-build
index 962ae38..37ce0f2 100755
--- a/test/etc/default-build
+++ b/test/etc/default-build
@@ -64,6 +64,9 @@
 SKIP_DX_MERGER="false"
 EXPERIMENTAL=""
 
+# The key for default arguments if no experimental things are enabled.
+DEFAULT_EXPERIMENT="no-experiment"
+
 # Setup experimental flag mappings in a bash associative array.
 declare -A JACK_EXPERIMENTAL_ARGS
 JACK_EXPERIMENTAL_ARGS["default-methods"]="-D jack.java.source.version=1.8 -D jack.android.min-api-level=24"
@@ -72,6 +75,11 @@
 declare -A SMALI_EXPERIMENTAL_ARGS
 SMALI_EXPERIMENTAL_ARGS["default-methods"]="--api-level 24"
 
+declare -A JAVAC_EXPERIMENTAL_ARGS
+JAVAC_EXPERIMENTAL_ARGS["default-methods"]="-source 1.8 -target 1.8"
+JAVAC_EXPERIMENTAL_ARGS["lambdas"]="-source 1.8 -target 1.8"
+JAVAC_EXPERIMENTAL_ARGS[${DEFAULT_EXPERIMENT}]="-source 1.7 -target 1.7"
+
 while true; do
   if [ "x$1" = "x--dx-option" ]; then
     shift
@@ -100,6 +108,8 @@
     shift
   elif [ "x$1" = "x--experimental" ]; then
     shift
+    # We have a specific experimental configuration so don't use the default.
+    DEFAULT_EXPERIMENT=""
     EXPERIMENTAL="${EXPERIMENTAL} $1"
     shift
   elif expr "x$1" : "x--" >/dev/null 2>&1; then
@@ -110,10 +120,14 @@
   fi
 done
 
+# Be sure to get any default arguments if not doing any experiments.
+EXPERIMENTAL="${EXPERIMENTAL} ${DEFAULT_EXPERIMENT}"
+
 # Add args from the experimental mappings.
 for experiment in ${EXPERIMENTAL}; do
   JACK_ARGS="${JACK_ARGS} ${JACK_EXPERIMENTAL_ARGS[${experiment}]}"
   SMALI_ARGS="${SMALI_ARGS} ${SMALI_EXPERIMENTAL_ARGS[${experiment}]}"
+  JAVAC_ARGS="${JAVAC_ARGS} ${JAVAC_EXPERIMENTAL_ARGS[${experiment}]}"
 done
 
 if [ -e classes.dex ]; then
diff --git a/test/run-test b/test/run-test
index 3ae063a..9569a57 100755
--- a/test/run-test
+++ b/test/run-test
@@ -41,7 +41,7 @@
 fi
 checker="${progdir}/../tools/checker/checker.py"
 export JAVA="java"
-export JAVAC="javac -g -source 1.7 -target 1.7 -Xlint:-options"
+export JAVAC="javac -g -Xlint:-options"
 export RUN="${progdir}/etc/run-test-jar"
 export DEX_LOCATION=/data/run-test/${test_dir}
 export NEED_DEX="true"