Collect type feedback on result of Math.[round|ceil|floor]

src/assembler.h

Index: src/assembler.h
diff --git a/src/assembler.h b/src/assembler.h
index fd66e0bfdb111b22c74f562cae1640c191481c2f..9fe4107163d6a641fb47e6b8cde5428c9c8ae32a 100644
--- a/src/assembler.h
+++ b/src/assembler.h
@@ -957,6 +957,7 @@ class ExternalReference BASE_EMBEDDED {
   // Static variables containing common double constants.
   static ExternalReference address_of_min_int();
   static ExternalReference address_of_one_half();
+  static ExternalReference address_of_minus_one();
   static ExternalReference address_of_minus_one_half();
   static ExternalReference address_of_negative_infinity();
   static ExternalReference address_of_the_hole_nan();