Make invalid LHSs a parse-time (reference) error

src/messages.js

 // Copyright 2012 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
@@ skipping 27 matching lines @@
   unexpected_token_number:       ["Unexpected number"],
   unexpected_token_string:       ["Unexpected string"],
   unexpected_token_identifier:   ["Unexpected identifier"],
   unexpected_reserved:           ["Unexpected reserved word"],
   unexpected_strict_reserved:    ["Unexpected strict mode reserved word"],
   unexpected_eos:                ["Unexpected end of input"],
   malformed_regexp:              ["Invalid regular expression: /", "%0", "/: ", "%1"],
   unterminated_regexp:           ["Invalid regular expression: missing /"],
   regexp_flags:                  ["Cannot supply flags when constructing one RegExp from another"],
   incompatible_method_receiver:  ["Method ", "%0", " called on incompatible receiver ", "%1"],
-  invalid_lhs_in_assignment:     ["Invalid left-hand side in assignment"],
-  invalid_lhs_in_for_in:         ["Invalid left-hand side in for-in"],
-  invalid_lhs_in_postfix_op:     ["Invalid left-hand side expression in postfix operation"],
-  invalid_lhs_in_prefix_op:      ["Invalid left-hand side expression in prefix operation"],
   multiple_defaults_in_switch:   ["More than one default clause in switch statement"],
   newline_after_throw:           ["Illegal newline after throw"],
   redeclaration:                 ["%0", " '", "%1", "' has already been declared"],
   no_catch_or_finally:           ["Missing catch or finally after try"],
   unknown_label:                 ["Undefined label '", "%0", "'"],
   uncaught_exception:            ["Uncaught ", "%0"],
   stack_trace:                   ["Stack Trace:\n", "%0"],
   called_non_callable:           ["%0", " is not a function"],
   undefined_method:              ["Object ", "%1", " has no method '", "%0", "'"],
   property_not_function:         ["Property '", "%0", "' of object ", "%1", " is not a function"],
@@ skipping 64 matching lines @@
   typed_array_set_negative_offset:
                                  ["Start offset is negative"],
   invalid_data_view_offset:      ["Start offset is outside the bounds of the buffer"],
   invalid_data_view_length:      ["Invalid data view length"],
   invalid_data_view_accessor_offset:
                                  ["Offset is outside the bounds of the DataView"],
 
   stack_overflow:                ["Maximum call stack size exceeded"],
   invalid_time_value:            ["Invalid time value"],
   invalid_count_value:           ["Invalid count value"],
+  // ReferenceError
+  invalid_lhs_in_assignment:     ["Invalid left-hand side in assignment"],
+  invalid_lhs_in_for:            ["Invalid left-hand side in for-loop"],
+  invalid_lhs_in_postfix_op:     ["Invalid left-hand side expression in postfix operation"],
+  invalid_lhs_in_prefix_op:      ["Invalid left-hand side expression in prefix operation"],
   // SyntaxError
   paren_in_arg_string:           ["Function arg string contains parenthesis"],
   not_isvar:                     ["builtin %IS_VAR: not a variable"],
   single_function_literal:       ["Single function literal required"],
   invalid_regexp_flags:          ["Invalid flags supplied to RegExp constructor '", "%0", "'"],
   invalid_regexp:                ["Invalid RegExp pattern /", "%0", "/"],
   illegal_break:                 ["Illegal break statement"],
   illegal_continue:              ["Illegal continue statement"],
   illegal_return:                ["Illegal return statement"],
   illegal_let:                   ["Illegal let declaration outside extended mode"],
@@ skipping 1201 matching lines @@
     %GetAndClearOverflowedStackTrace(this);
   };
 
   %DefineOrRedefineAccessorProperty(
       boilerplate, 'stack', getter, setter, DONT_ENUM);
 
   return boilerplate;
 }
 
 var kStackOverflowBoilerplate = SetUpStackOverflowBoilerplate();