warnings: remove/tweak some dead code

It looks like the dead code detector got better, so do a little code
cleanup.

crates/globset/src/glob.rs

@@ -143,8 +143,6 @@ impl GlobMatcher {
 struct GlobStrategic {
     /// The match strategy to use.
     strategy: MatchStrategy,
-    /// The underlying pattern.
-    pat: Glob,
     /// The pattern, as a compiled regex.
     re: Regex,
 }
@@ -273,7 +271,7 @@ impl Glob {
         let strategy = MatchStrategy::new(self);
         let re =
             new_regex(&self.re).expect("regex compilation shouldn't fail");
-        GlobStrategic { strategy: strategy, pat: self.clone(), re: re }
+        GlobStrategic { strategy: strategy, re: re }
     }
 
     /// Returns the original glob pattern used to build this pattern.

crates/ignore/src/types.rs

@@ -122,10 +122,6 @@ enum GlobInner<'a> {
     Matched {
         /// The file type definition which provided the glob.
         def: &'a FileTypeDef,
-        /// The index of the glob that matched inside the file type definition.
-        which: usize,
-        /// Whether the selection was negated or not.
-        negated: bool,
     },
 }
 
@@ -291,13 +287,9 @@ impl Types {
         self.set.matches_into(name, &mut *matches);
         // The highest precedent match is the last one.
         if let Some(&i) = matches.last() {
-            let (isel, iglob) = self.glob_to_selection[i];
+            let (isel, _) = self.glob_to_selection[i];
             let sel = &self.selections[isel];
-            let glob = Glob(GlobInner::Matched {
-                def: sel.inner(),
-                which: iglob,
-                negated: sel.is_negated(),
-            });
+            let glob = Glob(GlobInner::Matched { def: sel.inner() });
             return if sel.is_negated() {
                 Match::Ignore(glob)
             } else {

crates/searcher/src/searcher/core.rs

@@ -467,6 +467,7 @@ impl<'s, M: Matcher, S: Sink> Core<'s, M, S> {
         let keepgoing = self.sink.context(
             &self.searcher,
             &SinkContext {
+                #[cfg(test)]
                 line_term: self.config.line_term,
                 bytes: &buf[*range],
                 kind: SinkContextKind::Before,
@@ -497,6 +498,7 @@ impl<'s, M: Matcher, S: Sink> Core<'s, M, S> {
         let keepgoing = self.sink.context(
             &self.searcher,
             &SinkContext {
+                #[cfg(test)]
                 line_term: self.config.line_term,
                 bytes: &buf[*range],
                 kind: SinkContextKind::After,
@@ -526,6 +528,7 @@ impl<'s, M: Matcher, S: Sink> Core<'s, M, S> {
         let keepgoing = self.sink.context(
             &self.searcher,
             &SinkContext {
+                #[cfg(test)]
                 line_term: self.config.line_term,
                 bytes: &buf[*range],
                 kind: SinkContextKind::Other,

crates/searcher/src/searcher/glue.rs

@@ -88,7 +88,6 @@ where
 
 #[derive(Debug)]
 pub struct SliceByLine<'s, M, S> {
-    config: &'s Config,
     core: Core<'s, M, S>,
     slice: &'s [u8],
 }
@@ -103,7 +102,6 @@ impl<'s, M: Matcher, S: Sink> SliceByLine<'s, M, S> {
         debug_assert!(!searcher.multi_line_with_matcher(&matcher));
 
         SliceByLine {
-            config: &searcher.config,
             core: Core::new(searcher, matcher, write_to, true),
             slice: slice,
         }

crates/searcher/src/sink.rs

@@ -436,6 +436,7 @@ pub enum SinkContextKind {
 /// A type that describes a contextual line reported by a searcher.
 #[derive(Clone, Debug)]
 pub struct SinkContext<'b> {
+    #[cfg(test)]
     pub(crate) line_term: LineTerminator,
     pub(crate) bytes: &'b [u8],
     pub(crate) kind: SinkContextKind,