Fix issue 1968, replace usage of inline 'asm' constructs in 'stack alignment', 'jump to exception h…

vm/assembler_arm.h

 // Copyright (c) 2012, 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.
 
 #ifndef VM_ASSEMBLER_ARM_H_
 #define VM_ASSEMBLER_ARM_H_
 
 #ifndef VM_ASSEMBLER_H_
 #error Do not include assembler_arm.h directly; use assembler.h instead.
 #endif
 
 #include "platform/assert.h"
 #include "vm/constants_arm.h"
 
 namespace dart {
 
-#if defined(TESTING) || defined(DEBUG)
-
-#define CHECK_STACK_ALIGNMENT {                                                \
-  UNIMPLEMENTED();                                                             \
-}
-
-#else
-
-#define CHECK_STACK_ALIGNMENT { }
-
-#endif
-
-
 class Label : public ValueObject {
  public:
   Label() : position_(0) { }
 
   ~Label() {
     // Assert if label is being destroyed with unresolved branches pending.
     ASSERT(!IsLinked());
   }
 
   // Returns the position for bound and linked labels. Cannot be used
@@ skipping 70 matching lines @@
 
  private:
   ZoneGrowableArray<int>* pointer_offsets_;
   DISALLOW_ALLOCATION();
   DISALLOW_COPY_AND_ASSIGN(Assembler);
 };
 
 }  // namespace dart
 
 #endif  // VM_ASSEMBLER_ARM_H_