fgm/waiig15: My version of the Writing an Interpreter in Go 1.5 code. @ debd2ba0de0b88369d08a8f39fa451dc59339305

Frederic G. MARAND debd2ba0de §1.4 more reserved tokens.		пре 6 година
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lexer.go	19c76ffe57 §1.4 more single-character tokens.	пре 6 година
lexer_test.go	debd2ba0de §1.4 more reserved tokens.	пре 6 година