Make builtin functions be skipped in stack traces.

test/mjsunit/stack-traces-2.js

+// Copyright 2011 the V8 project authors. All rights reserved.
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
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+//     * Redistributions in binary form must reproduce the above
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+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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+// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+// Flags: --builtins-in-stack-traces
+
+
+// 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 testNotOmittedBuiltin(throwing, included) {
+  try {
+    throwing();
+    assertUnreachable(included);
+  } catch (e) {
+    assertTrue(e.stack.indexOf(included) >= 0, included);
+  }
+}
+
+
+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.
+
+// QuickSort has builtins object as receiver, and is non-native
+// builtin. Should not be omitted with the --builtins-in-stack-traces flag.
+testNotOmittedBuiltin(function(){ [thrower, 2].sort(function (a,b) {
+                                                     (b < a) - (a < b); });
+                      }, "QuickSort");
+
+// Not omitted even though ADD from runtime.js is a non-native builtin.
+testNotOmittedBuiltin(function(){ thrower + 2; }, "ADD");