Renaming and preparing to remove oracles (#985)

A few references to oracles still remain, but they have been removed as a feature, at least.

Reviewed-on: #985
Reviewed-by: Ulf Wiger <ulfwiger@qpq.swiss>
Co-authored-by: Craig Everett <zxq9@zxq9.com>
Co-committed-by: Craig Everett <zxq9@zxq9.com>

include/so_parse_lib.hrl

@@ -0,0 +1,27 @@
+
+-define(LET_P(X, P, Q), so_parse_lib:bind(P, fun(X) -> Q end)).
+-define(LAZY_P(P),      so_parse_lib:lazy(fun() -> P end)).
+-define(MEMO_P(P),      so_parse_lib:lazy(so_parse_lib:memoised(fun() -> P end))).
+
+-define(GUARD_P(G, P),
+    case G of
+        true  -> P;
+        false -> fail()
+    end).
+
+-define(RULE(A,                      Do), map(fun(_1) ->                               Do end, A                       )).
+-define(RULE(A, B,                   Do), map(fun({_1, _2}) ->                         Do end, {A, B}                  )).
+-define(RULE(A, B, C,                Do), map(fun({_1, _2, _3}) ->                     Do end, {A, B, C}               )).
+-define(RULE(A, B, C, D,             Do), map(fun({_1, _2, _3, _4}) ->                 Do end, {A, B, C, D}            )).
+-define(RULE(A, B, C, D, E,          Do), map(fun({_1, _2, _3, _4, _5}) ->             Do end, {A, B, C, D, E}         )).
+-define(RULE(A, B, C, D, E, F,       Do), map(fun({_1, _2, _3, _4, _5, _6}) ->         Do end, {A, B, C, D, E, F}      )).
+-define(RULE(A, B, C, D, E, F, G,    Do), map(fun({_1, _2, _3, _4, _5, _6, _7}) ->     Do end, {A, B, C, D, E, F, G}   )).
+-define(RULE(A, B, C, D, E, F, G, H, Do), map(fun({_1, _2, _3, _4, _5, _6, _7, _8}) -> Do end, {A, B, C, D, E, F, G, H})).
+
+-import(so_parse_lib,
+        [tok/1, tok/2, between/3, many/1, many1/1, sep/2, sep1/2,
+         infixl/1, infixr/1, choice/1, choice/2, return/1, layout/0,
+         fail/0, fail/1, fail/2, map/2, infixl/2, infixr/2, infixl1/2, infixr1/2,
+         left/2, right/2, optional/1]).
+
+

include/so_utils.hrl

@@ -0,0 +1,6 @@
+-define(IS_CONTRACT_HEAD(X),
+        (X =:= contract_main orelse
+         X =:= contract_interface orelse
+         X =:= contract_child
+        )
+       ).