[turbofan] Initial support for escape analysis.

test/mjsunit/compiler/escape-analysis-3.js

Index: test/mjsunit/compiler/escape-analysis-3.js
diff --git a/test/mjsunit/regress/regress-3029.js b/test/mjsunit/compiler/escape-analysis-3.js
similarity index 84%
copy from test/mjsunit/regress/regress-3029.js
copy to test/mjsunit/compiler/escape-analysis-3.js
index ae412dff2ba98b52468cd2fa02d7bfc0653cffb9..d1ebc9b1f8c72de8981784df9c87b552e52c080f 100644
--- a/test/mjsunit/regress/regress-3029.js
+++ b/test/mjsunit/compiler/escape-analysis-3.js
@@ -1,4 +1,4 @@
-// Copyright 2013 the V8 project authors. All rights reserved.
+// Copyright 2015 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
@@ -25,21 +25,20 @@
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-// Flags: --allow-natives-syntax
-
-function c(x) {
-  undefined.boom();
-}
+// Flags: --allow-natives-syntax --turbo-escape
+//
 
-function f() {
-  return new c();
+function f(a) {
+  "use strict";
+  return arguments.length;
 }
 
 function g() {
-  f();
+  "use strict";
+  return arguments[f(1,2)];
 }
 
-assertThrows("g()", TypeError);
-assertThrows("g()", TypeError);
+assertEquals(6, g(4,5,6));
+assertEquals(6, g(4,5,6));
 %OptimizeFunctionOnNextCall(g);
-assertThrows("g()", TypeError);
+assertEquals(6, g(4,5,6));