Rework checker "packages" and groups to be more hierarchical.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128187 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Analysis/malloc.c b/test/Analysis/malloc.c
index 95da872..c13e152 100644
--- a/test/Analysis/malloc.c
+++ b/test/Analysis/malloc.c
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -analyze -analyzer-checker=core,core.experimental.UnreachableCode,core.experimental.CastSize,core.experimental.Malloc -analyzer-store=region -verify %s
+// RUN: %clang_cc1 -analyze -analyzer-checker=core,deadcode.experimental.UnreachableCode,core.experimental.CastSize,unix.experimental.Malloc -analyzer-store=region -verify %s
 typedef __typeof(sizeof(int)) size_t;
 void *malloc(size_t);
 void free(void *);