Added %_NewConsString intrinsic.

test/cctest/compiler/test-run-intrinsics.cc

Index: test/cctest/compiler/test-run-intrinsics.cc
diff --git a/test/cctest/compiler/test-run-intrinsics.cc b/test/cctest/compiler/test-run-intrinsics.cc
index 411d63da2de6d8cac14b0eb947889b8fbe11c4e8..7fc5cc9758a773abd14da9690d7e225635aab9be 100644
--- a/test/cctest/compiler/test-run-intrinsics.cc
+++ b/test/cctest/compiler/test-run-intrinsics.cc
@@ -63,7 +63,7 @@ TEST(IncrementStatsCounter) {
   reinterpret_cast<v8::Isolate*>(CcTest::InitIsolateOnce())
       ->SetCounterFunction(LookupCounter);
   FunctionTester T(
-      "(function() { %_IncrementStatsCounter(\"" COUNTER_NAME "\"); })", flags);
+      "(function() { %_IncrementStatsCounter('" COUNTER_NAME "'); })", flags);
   StatsCounter counter(T.main_isolate(), COUNTER_NAME);
   if (!counter.Enabled()) return;
 
@@ -235,6 +235,18 @@ TEST(OneByteSeqStringSetChar) {
 }
 
 
+TEST(NewConsString) {
+  FLAG_turbo_deoptimization = true;
+  FunctionTester T(
+      "(function() { "
+      "   return %_NewConsString(14, true, 'abcdefghi', 'jklmn');"
+      " })",
+      flags);
+
+  T.CheckCall(T.Val("abcdefghijklmn"));
+}
+
+
 TEST(SetValueOf) {
   FLAG_turbo_deoptimization = true;
   FunctionTester T("(function(a,b) { return %_SetValueOf(a,b); })", flags);