private void TokenizeGlobalVariables1() {
AssertTokenizer t = NewAssertTokenizer();
t.Load("$")[Tokens.Dollar].EOF();
t.Load("$_")[Tokens.GlobalVariable, "_"].EOF();
t.Load("$_1")[Tokens.GlobalVariable, "_1"].EOF();
t.Load("$_-1")[Tokens.GlobalVariable, "_"][Tokens.Minus][1].EOF();
t.Load("$!")[Tokens.GlobalVariable, "!"].EOF();
t.Load("$@")[Tokens.GlobalVariable, "@"].EOF();
t.Load("$-")[Tokens.GlobalVariable, "-"].EOF();
t.Load("$--1")[Tokens.GlobalVariable, "-"][Tokens.Minus][1].EOF();
t.Load("$-x")[Tokens.GlobalVariable, "-x"].EOF();
t.Expect();
}