[turbofan] Initial support for escape analysis.

test/mjsunit/compiler/escape-analysis-1.js

Index: test/mjsunit/compiler/escape-analysis-1.js
diff --git a/test/mjsunit/regress/regress-3029.js b/test/mjsunit/compiler/escape-analysis-1.js
similarity index 85%
copy from test/mjsunit/regress/regress-3029.js
copy to test/mjsunit/compiler/escape-analysis-1.js
index ae412dff2ba98b52468cd2fa02d7bfc0653cffb9..b8c66448dca61d1be0fefb6491d49b75a46a76b7 100644
--- a/test/mjsunit/regress/regress-3029.js
+++ b/test/mjsunit/compiler/escape-analysis-1.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 +25,19 @@
 // (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();
+  return f(1,2,3);
 }
 
-assertThrows("g()", TypeError);
-assertThrows("g()", TypeError);
+assertEquals(3, g());
+assertEquals(3, g());
 %OptimizeFunctionOnNextCall(g);
-assertThrows("g()", TypeError);
+assertEquals(3, g());