Pass strict mode flag to eval.

src/messages.js

Index: src/messages.js
diff --git a/src/messages.js b/src/messages.js
index fcd7285ecfb769dd2590b7f468d4b0e0663c92f4..d665275ab28736249dc42e45a67a2ee86a0cea17 100644
--- a/src/messages.js
+++ b/src/messages.js
@@ -220,7 +220,7 @@ function FormatMessage(message) {
       strict_duplicate_property:    "Duplicate data property in object literal not allowed in strict mode",
       accessor_data_property:       "Object literal may not have data and accessor property with the same name",
       accessor_get_set:             "Object literal may not have multiple get/set accessors with the same name",
-      strict_lhs_eval_assignment:   "Assignment to eval or arguments is not allowed in strict mode",
+      strict_lhs_assignment:        "Assignment to eval or arguments is not allowed in strict mode",
       strict_lhs_postfix:           "Postfix increment/decrement may not have eval or arguments operand in strict mode",
       strict_lhs_prefix:            "Prefix increment/decrement may not have eval or arguments operand in strict mode",
     };