Split off remaining runtime functions in runtime.cc.

src/runtime/runtime-numbers.cc

Index: src/runtime/runtime-numbers.cc
diff --git a/src/runtime/runtime-numbers.cc b/src/runtime/runtime-numbers.cc
index 8074e4102023fdccca82c8a943832ca12d233966..17c52e14f59111fcbcd48b69883bf717e2147d01 100644
--- a/src/runtime/runtime-numbers.cc
+++ b/src/runtime/runtime-numbers.cc
@@ -5,6 +5,7 @@
 #include "src/v8.h"
 
 #include "src/arguments.h"
+#include "src/bootstrapper.h"
 #include "src/codegen.h"
 #include "src/misc-intrinsics.h"
 #include "src/runtime/runtime.h"
@@ -557,6 +558,21 @@ RUNTIME_FUNCTION(Runtime_SmiLexicographicCompare) {
 }
 
 
+RUNTIME_FUNCTION(Runtime_GetRootNaN) {
+  SealHandleScope shs(isolate);
+  DCHECK(args.length() == 0);
+  RUNTIME_ASSERT(isolate->bootstrapper()->IsActive());
+  return isolate->heap()->nan_value();
+}
+
+
+RUNTIME_FUNCTION(Runtime_MaxSmi) {
+  SealHandleScope shs(isolate);
+  DCHECK(args.length() == 0);
+  return Smi::FromInt(Smi::kMaxValue);
+}
+
+
 RUNTIME_FUNCTION(RuntimeReference_NumberToString) {
   SealHandleScope shs(isolate);
   return __RT_impl_Runtime_NumberToStringRT(args, isolate);