Revert of [turbofan] Don't take into account source size for inlining heuristics.

test/mjsunit/es6/tail-call-megatest.js

Index: test/mjsunit/es6/tail-call-megatest.js
diff --git a/test/mjsunit/es6/tail-call-megatest.js b/test/mjsunit/es6/tail-call-megatest.js
index a3b5cecbe0a2add066a42f1922d42d33c6e4dcd8..3d2ecb8daa3884a02287bac12b2e25e53d289fdd 100644
--- a/test/mjsunit/es6/tail-call-megatest.js
+++ b/test/mjsunit/es6/tail-call-megatest.js
@@ -25,11 +25,10 @@
 
 var CAN_INLINE_COMMENT  = "// Let it be inlined.";
 var DONT_INLINE_COMMENT = (function() {
-  var line = "1";
-  for (var i = 0; i < 200; ++i) {
-    line += "," + i;
-  }
-  line += ";\n";
+  var line = "// Don't inline. Don't inline. Don't inline. Don't inline.";
+  for (var i = 0; i < 4; i++) {
+    line += "\n  " + line;
+  }
   return line;
 })();