introduce crate rustc_feature and move active, accepted, and removed to it

3 files changed, 5 insertions, 3 deletions

diff --git a/src/libsyntax_expand/Cargo.toml b/src/libsyntax_expand/Cargo.toml
index 653b87f0d82..897d5a65ba3 100644
--- a/src/libsyntax_expand/Cargo.toml
+++ b/src/libsyntax_expand/Cargo.toml
@@ -16,6 +16,7 @@ log = "0.4"
 syntax_pos = { path = "../libsyntax_pos" }
 errors = { path = "../librustc_errors", package = "rustc_errors" }
 rustc_data_structures = { path = "../librustc_data_structures" }
+rustc_feature = { path = "../librustc_feature" }
 rustc_lexer = { path = "../librustc_lexer" }
 rustc_parse = { path = "../librustc_parse" }
 smallvec = { version = "1.0", features = ["union", "may_dangle"] }
diff --git a/src/libsyntax_expand/expand.rs b/src/libsyntax_expand/expand.rs
index 4f05b0147bf..d8033759033 100644
--- a/src/libsyntax_expand/expand.rs
+++ b/src/libsyntax_expand/expand.rs
@@ -4,8 +4,9 @@ use crate::hygiene::{ExpnId, SyntaxContext, ExpnData, ExpnKind};
 use crate::mbe::macro_rules::annotate_err_with_kind;
 use crate::placeholders::{placeholder, PlaceholderExpander};
 use crate::config::StripUnconfigured;
-use rustc_parse::configure;
 
+use rustc_feature::Features;
+use rustc_parse::configure;
 use rustc_parse::DirectoryOwnership;
 use rustc_parse::parser::Parser;
 use rustc_parse::validate_attr;
@@ -13,7 +14,7 @@ use syntax::ast::{self, AttrItem, Block, Ident, LitKind, NodeId, PatKind, Path};
 use syntax::ast::{MacStmtStyle, StmtKind, ItemKind};
 use syntax::attr::{self, HasAttrs};
 use syntax::source_map::respan;
-use syntax::feature_gate::{self, Features, GateIssue, is_builtin_attr, emit_feature_err};
+use syntax::feature_gate::{self, GateIssue, is_builtin_attr, emit_feature_err};
 use syntax::mut_visit::*;
 use syntax::print::pprust;
 use syntax::ptr::P;
diff --git a/src/libsyntax_expand/mbe/macro_rules.rs b/src/libsyntax_expand/mbe/macro_rules.rs
index a1d8b5a5338..b191527df19 100644
--- a/src/libsyntax_expand/mbe/macro_rules.rs
+++ b/src/libsyntax_expand/mbe/macro_rules.rs
@@ -8,12 +8,12 @@ use crate::mbe::macro_parser::{Error, Failure, Success};
 use crate::mbe::macro_parser::{MatchedNonterminal, MatchedSeq, NamedParseResult};
 use crate::mbe::transcribe::transcribe;
 
+use rustc_feature::Features;
 use rustc_parse::parser::Parser;
 use rustc_parse::Directory;
 use syntax::ast;
 use syntax::attr::{self, TransparencyError};
 use syntax::edition::Edition;
-use syntax::feature_gate::Features;
 use syntax::print::pprust;
 use syntax::sess::ParseSess;
 use syntax::symbol::{kw, sym, Symbol};