Refactor FrameAndConstantPoolScope and ConstantPoolUnavailableScope to be architecture independent

src/arm64/macro-assembler-arm64.cc

Index: src/arm64/macro-assembler-arm64.cc
diff --git a/src/arm64/macro-assembler-arm64.cc b/src/arm64/macro-assembler-arm64.cc
index f670403ab8112fe9b274c6c6386e03daa62796f0..63b7cbfa7ba3e31b941645313346852c4e5eefc1 100644
--- a/src/arm64/macro-assembler-arm64.cc
+++ b/src/arm64/macro-assembler-arm64.cc
@@ -3064,7 +3064,9 @@ void MacroAssembler::Prologue(bool code_pre_aging) {
 }
 
 
-void MacroAssembler::EnterFrame(StackFrame::Type type) {
+void MacroAssembler::EnterFrame(StackFrame::Type type,
+                                bool load_constant_pool_pointer_reg) {
+  DCHECK(!load_constant_pool_pointer_reg);

[rmcilroy, 2014/10/02 15:01:38]

Rather than adding the unnecessary argument to this function, could you just
keep this one as-is and add a separate function with both args which does the
DCHECK and calls though to this function (with a comment saying the constant
pool isn't supported on this architecture) - for all architectures.

[baixo, 2014/10/09 09:08:14]

Done.

   DCHECK(jssp.Is(StackPointer()));
   UseScratchRegisterScope temps(this);
   Register type_reg = temps.AcquireX();