Direct call to eval passes strict mode through.

test/mjsunit/strict-mode-eval.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:
+//
+//     * Redistributions of source code must retain the above copyright
+//       notice, this list of conditions and the following disclaimer.
+//     * Redistributions in binary form must reproduce the above
+//       copyright notice, this list of conditions and the following
+//       disclaimer in the documentation and/or other materials provided
+//       with the distribution.
+//     * Neither the name of Google Inc. nor the names of its
+//       contributors may be used to endorse or promote products derived
+//       from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+// 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.
+
+"use strict";
+
+var code1 = "function f(eval) {}";
+var code2 = "function f(a, a) {}";
+var code3 = "var x = '\\020;'";
+var code4 = "function arguments() {}";
+
+// Verify the code compiles just fine in non-strict mode
+// (using aliased eval to force non-strict mode)
+var eval_alias = eval;
+
+eval_alias(code1);
+eval_alias(code2);
+eval_alias(code3);
+eval_alias(code4);
+
+function strict1() {
+  try {
+    eval(code1);
+    assertUnreachable("did not throw exception");
+  } catch (e) {
+    assertInstanceof(e, SyntaxError);
+  }
+
+  function strict2() {
+    try {
+      eval(code2);
+      assertUnreachable("did not throw exception");
+    } catch (e) {
+      assertInstanceof(e, SyntaxError);
+    }
+
+    function strict3() {
+      try {
+        eval(code3);
+        assertUnreachable("did not throw exception");
+      } catch (e) {
+        assertInstanceof(e, SyntaxError);
+      }
+
+      function strict4() {
+        try {
+          eval(code4);
+          assertUnreachable("did not throw exception");
+        } catch (e) {
+          assertInstanceof(e, SyntaxError);
+        }
+      }
+      strict4();
+    }
+    strict3();
+  }
+  strict2();
+}
+strict1();