Adding support for multiple returns in compiled functions.

src/compiler/raw-machine-assembler.h

Index: src/compiler/raw-machine-assembler.h
diff --git a/src/compiler/raw-machine-assembler.h b/src/compiler/raw-machine-assembler.h
index 291f69f3b0a8d15966881b388d4f9414ece3b4cb..d084bd482bc5e9b5d32d3c64348d10694d4f5715 100644
--- a/src/compiler/raw-machine-assembler.h
+++ b/src/compiler/raw-machine-assembler.h
@@ -536,6 +536,8 @@ class RawMachineAssembler {
   void Switch(Node* index, Label* default_label, int32_t* case_values,
               Label** case_labels, size_t case_count);
   void Return(Node* value);
+  void Return(Node* v1, Node* v2);
+  void Return(Node* v1, Node* v2, Node* v3);
   void Bind(Label* label);
   void Deoptimize(Node* state);