Added compiler-rt side test

compiler-rt/test/asan/TestCases/dormant.cpp

@@ -0,0 +1,37 @@
+// RUN: %clangxx_asan -DREAD -O0 -mllvm -asan-dormant %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-READ
+// RUN: %clangxx_asan -O0 -mllvm -asan-dormant %s -o %t && not %run %t 2>&1 | FileCheck %s --check-prefix=CHECK-WRITE
+// REQUIRES: stable-runtime
+
+#include <sanitizer/asan_interface.h>
+int readHeapAfterFree(){
+  int * volatile x = new int[10];
+  delete[] x;
+  return x[5];
+}
+
+static int * volatile y;
+int writeHeapAfterFree(){
+  y = new int[10];
+  delete[] y;
+  return y[5] = 413;
+}
+
+int main() {
+#ifdef READ
+  readHeapAfterFree();
+  // CHECK-READCHECK-NOT {{.*ERROR: AddressSanitizer: heap-use-after-free on address}}
+  __asan_set_dormant(false);
+  readHeapAfterFree();
+  // CHECK-READ: {{.*ERROR: AddressSanitizer: heap-use-after-free on address}}
+
+#else
+
+  writeHeapAfterFree();
+  // CHECK-WRITE-NOT {{.*ERROR: AddressSanitizer: heap-use-after-free on address}}
+  __asan_set_dormant(false);
+  writeHeapAfterFree();
+  // CHECK-WRITE: {{.*ERROR: AddressSanitizer: heap-use-after-free on address}}
+#endif
+
+  return 0;
+}