fgm/waiig15: My version of the Writing an Interpreter in Go 1.5 code. @ 56158a4b80880f7d44580fe91ca66c63b9167e71

Frederic G. MARAND b69b615e71 §2.6 preparing the AST for the Pratt parser.		пре 6 година
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ast.go	b69b615e71 §2.6 preparing the AST for the Pratt parser.	пре 6 година
ast_string_test.go	b69b615e71 §2.6 preparing the AST for the Pratt parser.	пре 6 година
expression.go	b69b615e71 §2.6 preparing the AST for the Pratt parser.	пре 6 година
identifier.go	b69b615e71 §2.6 preparing the AST for the Pratt parser.	пре 6 година
let.go	b69b615e71 §2.6 preparing the AST for the Pratt parser.	пре 6 година
return.go	b69b615e71 §2.6 preparing the AST for the Pratt parser.	пре 6 година