Remove trailing comma in enum list.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@176926 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CGValue.h b/lib/CodeGen/CGValue.h
index b7591a7..0657fdc 100644
--- a/lib/CodeGen/CGValue.h
+++ b/lib/CodeGen/CGValue.h
@@ -99,7 +99,7 @@
 
 /// Does an ARC strong l-value have precise lifetime?
 enum ARCPreciseLifetime_t {
-  ARCImpreciseLifetime, ARCPreciseLifetime,
+  ARCImpreciseLifetime, ARCPreciseLifetime
 };
 
 /// LValue - This represents an lvalue references.  Because C/C++ allow