[turbofan] Make sure there is space for lazy deopt patching before the constant pool.

test/mjsunit/compiler/regress-446647.js

Index: test/mjsunit/compiler/regress-446647.js
diff --git a/test/mjsunit/regress/regress-444805.js-script b/test/mjsunit/compiler/regress-446647.js
similarity index 50%
copy from test/mjsunit/regress/regress-444805.js-script
copy to test/mjsunit/compiler/regress-446647.js
index 17b233b5613fcf1d71c8f7e77ab42d9f5a0bdcf1..77757abd662cd99fe0630be6ed8355b8bebf6eb3 100644
--- a/test/mjsunit/regress/regress-444805.js-script
+++ b/test/mjsunit/compiler/regress-446647.js
@@ -2,10 +2,10 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-Error.prepareStackTrace = function(dummyObject, v8StackTrace)
-{
-  throw new Error('boom');
-};
+// Flags: --always-opt --turbo-filter=* --turbo-deoptimization --allow-natives-syntax
 
+function f(a,b) {
+  a%b
+};
 
-throw new Error('just error');
+f({ toString : function() { %DeoptimizeFunction(f); }});