New API which does not expose unreachable

The old API exposes `unreachable` in both unescape_unicode and unescape_mixed.
These are conceptually one function, but because their return types are incompatible,
they could not be unified.

The new API takes this insight further to separate unescape_unicode into separate functions,
such that byte functions can return bytes instead of chars.

Author: hkBst

CHANGELOG.md

@@ -1,3 +1,10 @@
+# 0.0.4
+
+- Add `check_raw_str`, `check_raw_byte_str`, `check_raw_c_str`,
+- Add `unescape_str`, `unescape_byte_str`, `unescape_c_str`,
+- Add `unescape_for_errors`,
+- Remove: `unescape_unicode` and `unescape_mixed`
+
 # 0.0.3
 
 - Extend `rustc-dep-of-std` feature to include `libcore`

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "rustc-literal-escaper"
-version = "0.0.3"
+version = "0.0.4"
 edition = "2021"
 description = "Provides code to unescape string literals"
 license = "Apache-2.0 OR MIT"