X64: Change strategy for spilling to match ia32. It's just better.

src/arm/assembler-arm.h

Index: src/arm/assembler-arm.h
diff --git a/src/arm/assembler-arm.h b/src/arm/assembler-arm.h
index 11aae2fe6b9247286ba4d6c3c4bb3ce7ea86ed00..aa97ff8e8edb2104ce8127067eba0afe55d79a91 100644
--- a/src/arm/assembler-arm.h
+++ b/src/arm/assembler-arm.h
@@ -697,6 +697,8 @@ class Assembler : public Malloced {
   // possible to align the pc offset to a multiple
   // of m. m must be a power of 2 (>= 4).
   void Align(int m);
+  // Aligns code to something that's optimal for a jump target for the platform.
+  void CodeTargetAlign();
 
   // Branch instructions
   void b(int branch_offset, Condition cond = al);