PPC: Make FlushICache part of Assembler(Base) and take Isolate as parameter.

src/ppc/assembler-ppc-inl.h

 // Copyright (c) 1994-2006 Sun Microsystems Inc.
 // 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.
 //
@@ skipping 680 matching lines @@
 
     instr1 &= ~kImm16Mask;
     instr1 |= itarget & kImm16Mask;
     itarget = itarget >> 16;
 
     *p = instr1;
     *(p + 1) = instr2;
     *(p + 3) = instr4;
     *(p + 4) = instr5;
     if (icache_flush_mode != SKIP_ICACHE_FLUSH) {
-      CpuFeatures::FlushICache(p, 5 * kInstrSize);
+      Assembler::FlushICacheWithoutIsolate(p, 5 * kInstrSize);
     }
 #else
     uint32_t* p = reinterpret_cast<uint32_t*>(pc);
     uint32_t itarget = reinterpret_cast<uint32_t>(target);
     int lo_word = itarget & kImm16Mask;
     int hi_word = itarget >> 16;
     instr1 &= ~kImm16Mask;
     instr1 |= hi_word;
     instr2 &= ~kImm16Mask;
     instr2 |= lo_word;
 
     *p = instr1;
     *(p + 1) = instr2;
     if (icache_flush_mode != SKIP_ICACHE_FLUSH) {
-      CpuFeatures::FlushICache(p, 2 * kInstrSize);
+      Assembler::FlushICacheWithoutIsolate(p, 2 * kInstrSize);
     }
 #endif
     return;
   }
   UNREACHABLE();
 }
 }
 }  // namespace v8::internal
 
 #endif  // V8_PPC_ASSEMBLER_PPC_INL_H_