Switch LayoutLib to Java 8
The main build hasn't swtiched to java 8, but lambdas are already used
in layoutlib. This fixes the build break.
Change-Id: I4dd69ebd736179067899f5d86d3608d5fdb03d93
diff --git a/tools/layoutlib/Android.mk b/tools/layoutlib/Android.mk
index 5e57a25..c2ad9ef 100644
--- a/tools/layoutlib/Android.mk
+++ b/tools/layoutlib/Android.mk
@@ -16,6 +16,8 @@
LOCAL_PATH := $(my-dir)
include $(CLEAR_VARS)
+LOCAL_JAVA_LANGUAGE_VERSION := 1.8
+
#
# Define rules to build temp_layoutlib.jar, which contains a subset of
# the classes in framework.jar. The layoutlib_create tool is used to