Staticify.

Mark some functions "static".

Change-Id: Ia80bccab1f72690729e43f99783d34fe366108b2
diff --git a/vm/compiler/Ralloc.c b/vm/compiler/Ralloc.c
index f227527..744bc32 100644
--- a/vm/compiler/Ralloc.c
+++ b/vm/compiler/Ralloc.c
@@ -25,7 +25,7 @@
     int last;
 } LiveRange;
 
-int computeLiveRange(LiveRange *list, BasicBlock *bb, int seqNum)
+static int computeLiveRange(LiveRange *list, BasicBlock *bb, int seqNum)
 {
     MIR *mir;
     int i;