[analyzer] Re-enable using global regions as a symbolic base.

Now that we're invalidating global regions properly, we want to continue
taking advantage of a particular optimization: if all global regions are
invalidated together, we can represent the bindings of each region with
a "derived region value" symbol. Essentially, this lazily links each
global region with a single symbol created at invalidation time, rather
than binding each region with a new symbolic value.

We used to do this, but haven't been for a while; the previous commit
re-enabled this code path, and this handles the fallout.

<rdar://problem/13464044>

llvm-svn: 179554

1 files changed, 4 insertions, 0 deletions

diff --git a/clang/test/Analysis/Inputs/system-header-simulator.h b/clang/test/Analysis/Inputs/system-header-simulator.h
index e5efeb81f7d..dd1cd4942f8 100644
--- a/clang/test/Analysis/Inputs/system-header-simulator.h
+++ b/clang/test/Analysis/Inputs/system-header-simulator.h
@@ -5,6 +5,10 @@
 // suppressed.
 #pragma clang system_header
 
+#ifdef __cplusplus
+#define restrict /*restrict*/
+#endif
+
 typedef struct _FILE FILE;
 extern FILE *stdin;
 extern FILE *stdout;