Fix compilation with clang -integrated-as on ARM.

src/arm/cpu-arm.cc

 // Copyright 2006-2009 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 70 matching lines @@
     asm volatile(
         "svc 0x0"
         : "=r" (beg)
         : "0" (beg), "r" (end), "r" (flg), "r" (scno));
   #else
     // r7 is reserved by the EABI in thumb mode.
     asm volatile(
     "@   Enter ARM Mode  \n\t"
         "adr r3, 1f      \n\t"
         "bx  r3          \n\t"
-        ".ALIGN 4        \n\t"
-        ".ARM            \n"
+        ".align 4        \n\t"
+        ".arm            \n"
     "1:  push {r7}       \n\t"
         "mov r7, %4      \n\t"
         "svc 0x0         \n\t"
         "pop {r7}        \n\t"
     "@   Enter THUMB Mode\n\t"
         "adr r3, 2f+1    \n\t"
         "bx  r3          \n\t"
-        ".THUMB          \n"
+        ".thumb          \n"
     "2:                  \n\t"
         : "=r" (beg)
         : "0" (beg), "r" (end), "r" (flg), "r" (__ARM_NR_cacheflush)
         : "r3");
   #endif
 #endif
 }
 
 
 void CPU::DebugBreak() {
 #if !defined (__arm__) || !defined(CAN_USE_ARMV5_INSTRUCTIONS)
   UNIMPLEMENTED();  // when building ARM emulator target
 #else
   asm volatile("bkpt 0");
 #endif
 }
 
 } }  // namespace v8::internal
 
 #endif  // V8_TARGET_ARCH_ARM