[turbofan] Add support for storing to double fields.

src/compiler/node-properties.cc

Index: src/compiler/node-properties.cc
diff --git a/src/compiler/node-properties.cc b/src/compiler/node-properties.cc
index 659fb2a0f18d70737dd9cd9d0a3d060d6275b6d6..b8dc40567e85f1022c51170afde25706b28e3bf9 100644
--- a/src/compiler/node-properties.cc
+++ b/src/compiler/node-properties.cc
@@ -7,6 +7,7 @@
 #include "src/compiler/node-properties.h"
 #include "src/compiler/operator-properties.h"
 #include "src/compiler/verifier.h"
+#include "src/types-inl.h"
 
 namespace v8 {
 namespace internal {
@@ -276,6 +277,12 @@ void NodeProperties::CollectControlProjections(Node* node, Node** projections,
 
 
 // static
+Type* NodeProperties::GetTypeOrAny(Node* node) {
+  return IsTyped(node) ? node->type() : Type::Any();
+}
+
+
+// static
 bool NodeProperties::AllValueInputsAreTyped(Node* node) {
   int input_count = node->op()->ValueInputCount();
   for (int index = 0; index < input_count; ++index) {