[V8] Use Function.name in Error.stack

test/mjsunit/stack-traces.js

Index: test/mjsunit/stack-traces.js
diff --git a/test/mjsunit/stack-traces.js b/test/mjsunit/stack-traces.js
index f80a627b24a87eae9fe00e5bd0a24c5b7f5af903..ac4f2f127d574d6e678c0e839ac11b8baf824326 100644
--- a/test/mjsunit/stack-traces.js
+++ b/test/mjsunit/stack-traces.js
@@ -94,6 +94,19 @@ function testAnonymousMethod() {
   (function () { FAIL }).call([1, 2, 3]);
 }
 
+function testMethodDisplayName() {
+  function gen(name, counter) {
+    var f = function() {
+      if (counter === 0)
+        FAIL;

[aandrey, 2015/02/11 15:50:40]

nit: use { } in v8 code

[kozy, 2015/02/11 16:11:56]

Done.

+      gen(name, counter - 1)();
+    };
+    f.displayName = name + '_' + counter;
+    return f;
+  };
+  gen('foo', 2)();
+}
+
 function CustomError(message, stripPoint) {
   this.message = message;
   Error.captureStackTrace(this, stripPoint);
@@ -261,6 +274,8 @@ testTrace("testValue", testValue, ["at Number.causeError"]);
 testTrace("testConstructor", testConstructor, ["new Plonk"]);
 testTrace("testRenamedMethod", testRenamedMethod, ["Wookie.a$b$c$d [as d]"]);
 testTrace("testAnonymousMethod", testAnonymousMethod, ["Array.<anonymous>"]);
+testTrace("testMethodDisplayName", testMethodDisplayName,
+    [" at foo_0", " at foo_1", " at foo_2 "]);
 testTrace("testDefaultCustomError", testDefaultCustomError,
     ["hep-hey", "new CustomError"],
     ["collectStackTrace"]);