Make more use of the NumberInfo data....

src/ia32/virtual-frame-ia32.cc

Index: src/ia32/virtual-frame-ia32.cc
===================================================================
--- src/ia32/virtual-frame-ia32.cc	(revision 4025)
+++ src/ia32/virtual-frame-ia32.cc	(working copy)
@@ -162,7 +162,7 @@
     if (element.is_constant() || element.is_copy()) {
       if (element.is_synced()) {
         // Just spill.
-        elements_[i] = FrameElement::MemoryElement(NumberInfo::kUnknown);
+        elements_[i] = FrameElement::MemoryElement(NumberInfo::Unknown());
       } else {
         // Allocate to a register.
         FrameElement backing_element;  // Invalid if not a copy.
@@ -174,7 +174,7 @@
         elements_[i] =
             FrameElement::RegisterElement(fresh.reg(),
                                           FrameElement::NOT_SYNCED,
-                                          NumberInfo::kUnknown);
+                                          NumberInfo::Unknown());
         Use(fresh.reg(), i);
 
         // Emit a move.
@@ -207,7 +207,7 @@
       // The copy flag is not relied on before the end of this loop,
       // including when registers are spilled.
       elements_[i].clear_copied();
-      elements_[i].set_number_info(NumberInfo::kUnknown);
+      elements_[i].set_number_info(NumberInfo::Unknown());
     }
   }
 }
@@ -1062,7 +1062,7 @@
   ASSERT(element.is_valid());
 
   // Get number type information of the result.
-  NumberInfo::Type info;
+  NumberInfo info;
   if (!element.is_copy()) {
     info = element.number_info();
   } else {
@@ -1137,7 +1137,7 @@
 }
 
 
-void VirtualFrame::EmitPush(Register reg, NumberInfo::Type info) {
+void VirtualFrame::EmitPush(Register reg, NumberInfo info) {
   ASSERT(stack_pointer_ == element_count() - 1);
   elements_.Add(FrameElement::MemoryElement(info));
   stack_pointer_++;
@@ -1145,7 +1145,7 @@
 }
 
 
-void VirtualFrame::EmitPush(Operand operand, NumberInfo::Type info) {
+void VirtualFrame::EmitPush(Operand operand, NumberInfo info) {
   ASSERT(stack_pointer_ == element_count() - 1);
   elements_.Add(FrameElement::MemoryElement(info));
   stack_pointer_++;
@@ -1153,7 +1153,7 @@
 }
 
 
-void VirtualFrame::EmitPush(Immediate immediate, NumberInfo::Type info) {
+void VirtualFrame::EmitPush(Immediate immediate, NumberInfo info) {
   ASSERT(stack_pointer_ == element_count() - 1);
   elements_.Add(FrameElement::MemoryElement(info));
   stack_pointer_++;