gt method
void
gt()
Implementation
void gt() {
final char = advance();
final lexeme = peek().lexeme;
if (lexeme == '=') {
advance();
tokens.add(char.toToken(TokenType.kGTE, lexeme: '>='));
return;
} else if (lexeme == '>') {
advance();
tokens.add(char.toToken(TokenType.kBitRShift, lexeme: '>>'));
return;
}
tokens.add(char.toToken(TokenType.kGT, lexeme: '>'));
}