[turbofan] Add new Float32Abs and Float64Abs operators.

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 e9ef97fa7f9c90dcd49ffacbc8a68b3d943e1a8a..edc8f6b1dd04964e7793da41a65a681d25f1c1b9 100644
--- a/src/compiler/raw-machine-assembler.h
+++ b/src/compiler/raw-machine-assembler.h
@@ -340,6 +340,7 @@ class RawMachineAssembler : public GraphBuilder {
   Node* Float32Div(Node* a, Node* b) {
     return NewNode(machine()->Float32Div(), a, b);
   }
+  Node* Float32Abs(Node* a) { return NewNode(machine()->Float32Abs(), a); }
   Node* Float32Sqrt(Node* a) { return NewNode(machine()->Float32Sqrt(), a); }
   Node* Float32Equal(Node* a, Node* b) {
     return NewNode(machine()->Float32Equal(), a, b);
@@ -373,6 +374,7 @@ class RawMachineAssembler : public GraphBuilder {
   Node* Float64Mod(Node* a, Node* b) {
     return NewNode(machine()->Float64Mod(), a, b);
   }
+  Node* Float64Abs(Node* a) { return NewNode(machine()->Float64Abs(), a); }
   Node* Float64Sqrt(Node* a) { return NewNode(machine()->Float64Sqrt(), a); }
   Node* Float64Equal(Node* a, Node* b) {
     return NewNode(machine()->Float64Equal(), a, b);