[turbofan] Use builtin inlining mechanism for Math.abs and Math.sqrt.

src/compiler/js-intrinsic-lowering.h

Index: src/compiler/js-intrinsic-lowering.h
diff --git a/src/compiler/js-intrinsic-lowering.h b/src/compiler/js-intrinsic-lowering.h
index 493e962d59d6ac7e56ca596bc610381b6a154bce..3a910fd8113d662bb0d93732498761085de703fe 100644
--- a/src/compiler/js-intrinsic-lowering.h
+++ b/src/compiler/js-intrinsic-lowering.h
@@ -35,6 +35,7 @@ class JSIntrinsicLowering FINAL : public Reducer {
   Reduction ReduceInlineDoubleLo(Node* node);
   Reduction ReduceInlineDoubleHi(Node* node);
   Reduction ReduceInlineMathFloor(Node* node);
+  Reduction ReduceInlineMathSqrt(Node* node);
   Reduction ReduceInlineValueOf(Node* node);
 
   Reduction Change(Node* node, const Operator* op);