Fix trigonometric intrinsics: if allocation fails remember to release the loaded value on FPU stack.

runtime/vm/assembler_ia32_test.cc

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/globals.h"
 #if defined(TARGET_ARCH_IA32)
 
 #include "vm/assembler.h"
 #include "vm/os.h"
 #include "vm/unit_test.h"
@@ skipping 1266 matching lines @@
   typedef float (*CosineCode)(float f);
   const float kFloatConst = 0.7;
   float res = reinterpret_cast<CosineCode>(entry)(kFloatConst);
   EXPECT_FLOAT_EQ(cos(kFloatConst), res, 0.0001);
 }
 
 
 ASSEMBLER_TEST_GENERATE(Tangent, assembler) {
   __ fldl(Address(ESP, kWordSize));
   __ fptan();
-  __ ffree(Immediate(0));
+  __ ffree(0);
   __ fincstp();
   __ ret();
 }
 
 
 ASSEMBLER_TEST_RUN(Tangent, entry) {
   typedef double (*TangentCode)(double d);
   const double kDoubleConst = 0.6108652375000001;
   double res = reinterpret_cast<TangentCode>(entry)(kDoubleConst);
   EXPECT_FLOAT_EQ(tan(kDoubleConst), res, 0.0001);
@@ skipping 535 matching lines @@
 ASSEMBLER_TEST_RUN(TestAlignLarge, entry) {
   typedef int (*TestAlignLarge)();
   int res = reinterpret_cast<TestAlignLarge>(entry)();
   EXPECT_EQ(16, res);  // 16 bytes emitted.
 }
 
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_IA32