Version 3.7.1

test/mjsunit/stack-traces.js

Index: test/mjsunit/stack-traces.js
===================================================================
--- test/mjsunit/stack-traces.js	(revision 9808)
+++ test/mjsunit/stack-traces.js	(working copy)
@@ -194,6 +194,46 @@
 }
 
 
+// Poisonous object that throws a reference error if attempted converted to
+// a primitive values.
+var thrower = { valueOf: function() { FAIL; },
+                toString: function() { FAIL; } };
+
+// Tests that a native constructor function is included in the
+// stack trace.
+function testTraceNativeConstructor(nativeFunc) {
+  var nativeFuncName = nativeFunc.name;
+  try {
+    new nativeFunc(thrower);
+    assertUnreachable(nativeFuncName);
+  } catch (e) {
+    assertTrue(e.stack.indexOf(nativeFuncName) >= 0, nativeFuncName);
+  }
+}
+
+// Tests that a native conversion function is included in the
+// stack trace.
+function testTraceNativeConversion(nativeFunc) {
+  var nativeFuncName = nativeFunc.name;
+  try {
+    nativeFunc(thrower);
+    assertUnreachable(nativeFuncName);
+  } catch (e) {
+    assertTrue(e.stack.indexOf(nativeFuncName) >= 0, nativeFuncName);
+  }
+}
+
+
+function testOmittedBuiltin(throwing, omitted) {
+  try {
+    throwing();
+    assertUnreachable(omitted);
+  } catch (e) {
+    assertTrue(e.stack.indexOf(omitted) < 0, omitted);
+  }
+}
+
+
 testTrace("testArrayNative", testArrayNative, ["Array.map (native)"]);
 testTrace("testNested", testNested, ["at one", "at two", "at three"]);
 testTrace("testMethodNameInference", testMethodNameInference, ["at Foo.bar"]);
@@ -217,3 +257,21 @@
 testCallerCensorship();
 testUnintendedCallerCensorship();
 testErrorsDuringFormatting();
+
+testTraceNativeConversion(String);  // Does ToString on argument.
+testTraceNativeConversion(Number);  // Does ToNumber on argument.
+testTraceNativeConversion(RegExp);  // Does ToString on argument.
+
+testTraceNativeConstructor(String);  // Does ToString on argument.
+testTraceNativeConstructor(Number);  // Does ToNumber on argument.
+testTraceNativeConstructor(RegExp);  // Does ToString on argument.
+testTraceNativeConstructor(Date);    // Does ToNumber on argument.
+
+// Omitted because QuickSort has builtins object as receiver, and is non-native
+// builtin.
+testOmittedBuiltin(function(){ [thrower, 2].sort(function (a,b) {
+                                                     (b < a) - (a < b); });
+                   }, "QuickSort");
+
+// Omitted because ADD from runtime.js is non-native builtin.
+testOmittedBuiltin(function(){ thrower + 2; }, "ADD");