Count closures using the feedback vector cell map, specialize if count==1.

test/debugger/debug/debug-liveedit-double-call.js

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+// Flags: --noalways-opt
 
 Debug = debug.Debug
 
-
 function TestCase(test_scenario, expected_output) {
   // Global variable, accessed from eval'd script.
   test_output = "";
 
   var script_text_generator = (function() {
     var variables = { a: 1, b: 1, c: 1, d: 1, e: 1, f: 1 };
 
     return {
       get: function() {
         return "(function() {\n " +
@@ skipping 89 matching lines @@
 
 TestCase(['='], "f1e1d1c1b1a1=");
 
 TestCase(['c', '=', '='], "f1e1d1c1b1a1=c2b1a1=");
 
 TestCase(['b', 'c', 'd', 'e', '=', '='], "f1e1d1c1b1a1=e2d2c2b2a1=");
 
 TestCase(['b', 'c', '=', 'b', 'c', 'd', 'e', '=', '='], "f1e1d1c1b1a1=c2b2a1=e2d2c3b3a1=");
 
 TestCase(['e', 'f', '=', '='], "f1e1d1c1b1a1=f2e2d1c1b1a1=");