Deprecate the %IsConstructCall intrinsic completely.

test/mjsunit/regress/regress-1229.js

Index: test/mjsunit/regress/regress-1229.js
diff --git a/test/mjsunit/regress/regress-1229.js b/test/mjsunit/regress/regress-1229.js
index 5447f3f7d223ca885a7ded681e83b2e3459f513b..7a9b1dbd9f59a73f708995f6034b0fbdc2424b53 100644
--- a/test/mjsunit/regress/regress-1229.js
+++ b/test/mjsunit/regress/regress-1229.js
@@ -123,11 +123,11 @@ invoke(h1, [6, 4]);
 invoke(h2, [6, 4, 8]);
 invoke(h3, [8, 6, 4]);
 
-// Check that %_IsConstructCall returns correct value when inlined
+// Check that new.target returns correct value when inlined
 var NON_CONSTRUCT_MARKER = {};
 var CONSTRUCT_MARKER = {};
 function baz(x) {
-  return (!%_IsConstructCall()) ? NON_CONSTRUCT_MARKER : CONSTRUCT_MARKER;
+  return (new.target === undefined) ? NON_CONSTRUCT_MARKER : CONSTRUCT_MARKER;
 }
 
 function bar(x, y, z) {