MIPS: port Add complete ElementsKind information directly to Map for objects with elements.

src/mips/macro-assembler-mips.h

Index: src/mips/macro-assembler-mips.h
diff --git a/src/mips/macro-assembler-mips.h b/src/mips/macro-assembler-mips.h
index 2fbe2d7c7cc7e30344bf05c3552ea72502e0e1cd..0eb5981b6d42788bfdf622764d38ce9eb454889a 100644
--- a/src/mips/macro-assembler-mips.h
+++ b/src/mips/macro-assembler-mips.h
@@ -723,6 +723,12 @@ DECLARE_NOTARGET_PROTOTYPE(Ret)
                      Register map,
                      Register type_reg);
 
+  // Check if a map for a JSObject indicates that the object has fast elements.
+  // Jump to the specified label if it does not.
+  void CheckFastElements(Register map,
+                         Register scratch,
+                         Label* fail);
+
   // Check if the map of an object is equal to a specified map (either
   // given directly or as an index into the root list) and branch to
   // label if not. Skip the smi check if not required (object is known