[turbofan] Introduce Float64Pow and NumberPow 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 387e9619f551ccaa8379aadf16e91e50d1caaf31..49083aacf82b31ff61cd82226f0bfe54ebfdd741 100644
--- a/src/compiler/raw-machine-assembler.h
+++ b/src/compiler/raw-machine-assembler.h
@@ -473,6 +473,9 @@ class RawMachineAssembler {
   Node* Float64Log1p(Node* a) { return AddNode(machine()->Float64Log1p(), a); }
   Node* Float64Log10(Node* a) { return AddNode(machine()->Float64Log10(), a); }
   Node* Float64Log2(Node* a) { return AddNode(machine()->Float64Log2(), a); }
+  Node* Float64Pow(Node* a, Node* b) {
+    return AddNode(machine()->Float64Pow(), a, b);
+  }
   Node* Float64Sin(Node* a) { return AddNode(machine()->Float64Sin(), a); }
   Node* Float64Sqrt(Node* a) { return AddNode(machine()->Float64Sqrt(), a); }
   Node* Float64Tan(Node* a) { return AddNode(machine()->Float64Tan(), a); }