[scudo] Disable new/delete mismatch tests on Android.

[cferris]

Summary

Android does not do any checking of new/delete mismatches, so disable
this test when compiling for Android.

compiler-rt/lib/scudo/standalone/tests/wrappers_cpp_test.cpp

 #include <atomic>
 #include <condition_variable>
 #include <fstream>
 #include <memory>
 #include <mutex>
 #include <thread>
 #include <vector>
 
+// Android does not support checking for new/delete mismatches.
+#if SCUDO_ANDROID
+#define SKIP_MISMATCH_TESTS 1
+#else
+#define SKIP_MISMATCH_TESTS 0
+#endif
+
 void operator delete(void *, size_t) noexcept;
 void operator delete[](void *, size_t) noexcept;
 
 // Note that every Cxx allocation function in the test binary will be fulfilled
 // by Scudo. See the comment in the C counterpart of this file.
 
 template <typename T> static void testCxxNew() {
   T *P = new T;

 public:
   enum class Color { Red, Green, Blue };
   int X = 0;
   int Y = 0;
   Color C = Color::Red;
 };
 
 TEST(ScudoWrappersCppDeathTest, New) {
-  if (getenv("SKIP_TYPE_MISMATCH")) {
+  if (getenv("SKIP_TYPE_MISMATCH") || SKIP_MISMATCH_TESTS) {
     printf("Skipped type mismatch tests.\n");
     return;
   }
   testCxxNew<bool>();
   testCxxNew<uint8_t>();
   testCxxNew<uint16_t>();
   testCxxNew<uint32_t>();
   testCxxNew<uint64_t>();