Subzero. Removes X8664_STACK_HACK from the crosstests.

crosstest/test_cast_main.cpp

 //===- subzero/crosstest/test_cast_main.cpp - Driver for tests ------------===//
 //
 //                        The Subzero Code Generator
 //
 // This file is distributed under the University of Illinois Open Source
 // License. See LICENSE.TXT for details.
 //
 //===----------------------------------------------------------------------===//
 //
 // Driver for crosstesting cast operations.
@@ skipping 96 matching lines @@
     // Initialize the test vectors.
     FromType Value;
     for (size_t j = 0; j < NumElementsInType; ++j) {
       Value[j] = Values[Index() % NumValues];
     }
     COMPARE_VEC(cast, FromType, ToType, Value, FromTypeString, ToTypeString);
   }
 #endif // ARM32
 }
 
-#ifdef X8664_STACK_HACK
-extern "C" int wrapped_main(int argc, char *argv[]) {
-#else  // !defined(X8664_STACK_HACK)
 int main(int argc, char *argv[]) {
-#endif // X8664_STACK_HACK
   size_t TotalTests = 0;
   size_t Passes = 0;
   size_t Failures = 0;
 
   volatile bool ValsUi1[] = {false, true};
   static const size_t NumValsUi1 = sizeof(ValsUi1) / sizeof(*ValsUi1);
   volatile uint8_t ValsUi8[] = {0, 1, 0x7e, 0x7f, 0x80, 0x81, 0xfe, 0xff};
   static const size_t NumValsUi8 = sizeof(ValsUi8) / sizeof(*ValsUi8);
 
   volatile myint8_t ValsSi8[] = {0, 1, 0x7e, 0x7f, 0x80, 0x81, 0xfe, 0xff};
@@ skipping 107 matching lines @@
   }
   testVector<v4ui32, v4f32>(TotalTests, Passes, Failures, "v4ui32", "v4f32");
   testVector<v4si32, v4f32>(TotalTests, Passes, Failures, "v4si32", "v4f32");
   testVector<v4f32, v4si32>(TotalTests, Passes, Failures, "v4f32", "v4si32");
   testVector<v4f32, v4ui32>(TotalTests, Passes, Failures, "v4f32", "v4ui32");
 
   std::cout << "TotalTests=" << TotalTests << " Passes=" << Passes
             << " Failures=" << Failures << "\n";
   return Failures;
 }