Fix memory leaks in address sanitizer darwin tests

Summary: These leaks are detected by leak sanitizer for darwin.

Reviewers: glider, kubamracek, kcc, alekseyshl

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D31978

llvm-svn: 300080

compiler-rt/lib/asan/tests/asan_mac_test_helpers.mm

@@ -237,4 +237,5 @@ void TestNSURLDeallocation() {
       [[NSURL alloc] initWithString:@"Saved Application State"
                      relativeToURL:base];
   [u release];
+  [base release];
 }

compiler-rt/test/asan/TestCases/Darwin/malloc_set_zone_name-mprotect.cc

@@ -47,5 +47,6 @@ int main() {
     memset(mem[i], 'a', 8 * (i % kNumIter));
     free(mem[i]);
   }
+  malloc_destroy_zone(zone);
   return 0;
 }

compiler-rt/test/asan/TestCases/Darwin/scribble.cc

@@ -54,4 +54,5 @@ int main() {
   fprintf(stderr, "okthxbai!\n");
   // CHECK-SCRIBBLE: okthxbai!
   // CHECK-NOSCRIBBLE: okthxbai!
+  free(my_class_isa);
 }

compiler-rt/test/asan/TestCases/Darwin/suppressions-darwin.cc

@@ -27,6 +27,7 @@ int main() {
                               kCFStringEncodingUTF8, FALSE); // BOOM
   fprintf(stderr, "Ignored.\n");
   free(a);
+  CFRelease(str);
 }
 
 // CHECK-CRASH: AddressSanitizer: heap-buffer-overflow

compiler-rt/test/asan/TestCases/Darwin/suppressions-sandbox.cc

@@ -18,6 +18,7 @@ int main() {
                               kCFStringEncodingUTF8, FALSE);  // BOOM
   fprintf(stderr, "Ignored.\n");
   free(a);
+  CFRelease(str);
 }
 
 // CHECK-CRASH: AddressSanitizer: heap-buffer-overflow