Extend JSBuiltinReducer to cover Math.sqrt as well.

src/compiler/instruction-selector.cc

Index: src/compiler/instruction-selector.cc
diff --git a/src/compiler/instruction-selector.cc b/src/compiler/instruction-selector.cc
index 6bc41f47dfcabdd1f14bb9b10847eb8d8bf0bb61..3c32b642adb4c2cb937d55f8fe2c2f782146c2cb 100644
--- a/src/compiler/instruction-selector.cc
+++ b/src/compiler/instruction-selector.cc
@@ -596,6 +596,8 @@ void InstructionSelector::VisitNode(Node* node) {
       return MarkAsDouble(node), VisitFloat64Div(node);
     case IrOpcode::kFloat64Mod:
       return MarkAsDouble(node), VisitFloat64Mod(node);
+    case IrOpcode::kFloat64Sqrt:
+      return MarkAsDouble(node), VisitFloat64Sqrt(node);
     case IrOpcode::kFloat64Equal:
       return VisitFloat64Equal(node);
     case IrOpcode::kFloat64LessThan: