[crankshaft] Fix environment handling after leaving inlined tail call.

test/mjsunit/regress/regress-crbug-537444.js

Index: test/mjsunit/regress/regress-crbug-537444.js
diff --git a/test/mjsunit/regress/regress-crbug-598998.js b/test/mjsunit/regress/regress-crbug-537444.js
similarity index 69%
copy from test/mjsunit/regress/regress-crbug-598998.js
copy to test/mjsunit/regress/regress-crbug-537444.js
index 4cfe1a13af3fdf31e97786f2ea7f42c4dd1d56c8..1cb1f9ad92124786ecbbabcb627cf371d7855f7a 100644
--- a/test/mjsunit/regress/regress-crbug-598998.js
+++ b/test/mjsunit/regress/regress-crbug-537444.js
@@ -6,27 +6,23 @@
 
 "use strict";
 
-function deopt_function(func) {
-  %DeoptimizeFunction(func);
-}
-
 function f(x) {
-  return deopt_function(h);
+  return x;
 }
 
 function g(x) {
-  return f(x, 1);
+  return false ? 0 : f(x, 1);
 }
 
 function h(x) {
-  g(x, 1);
+  var z = g(x, 1);
+  return z + 1;
 }
 
 %SetForceInlineFlag(g);
 %SetForceInlineFlag(f);
-%NeverOptimizeFunction(deopt_function);
 
 h(1);
 h(1);
 %OptimizeFunctionOnNextCall(h);
-h(1);
+h("a");