Rename SystemMethods to ReflectionTest.

This test started out as one thing, but ended up as something else.

Change-Id: Idf85693cf49acf0ed198a92c4f3c66db31214ac0
diff --git a/build/Android.common.mk b/build/Android.common.mk
index ac477a2..c6e7366 100644
--- a/build/Android.common.mk
+++ b/build/Android.common.mk
@@ -269,12 +269,12 @@
 	ProtoCompare \
 	ProtoCompare2 \
 	ReferenceMap \
+	ReflectionTest \
 	StackWalk \
 	StackWalk2 \
 	StaticLeafMethods \
 	Statics \
 	StaticsFromCode \
-	SystemMethods \
 	ThreadStress \
 	Invoke \
 	XandY