refactor(preg): wrap the preg_* $matches maps in newtypes

The five IndexMap shapes that the preg_* functions and Preg fill in are
now distinct types generated by preg_match_map!, so a matches map no
longer interchanges with any other map of the same key and value type.

Index<usize> is kept alongside Index<&Q> because call sites such as
config_command and event_dispatcher reach for a group by its position in
the map rather than by its capture key.

1 files changed, 1 insertions, 1 deletions

diff --git a/crates/shirabe/src/io/buffer_io.rs b/crates/shirabe/src/io/buffer_io.rs
index 75c850f5..a3311129 100644
--- a/crates/shirabe/src/io/buffer_io.rs
+++ b/crates/shirabe/src/io/buffer_io.rs
@@ -76,7 +76,7 @@ impl BufferIO {
         loop {
             let next = Preg::replace_callback(
                 php_regex!(r"{(^|\n|\x08)(.+?)(\x08+)}"),
-                |matches: &indexmap::IndexMap<shirabe_pcre::CaptureKey, String>| -> String {
+                |matches: &shirabe_pcre::PregMatchedGroups| -> String {
                     let empty = String::new();
                     let g1 = matches
                         .get(&shirabe_pcre::CaptureKey::ByIndex(1))