Reexport literal-escaper from rustc_lexer to allow rust-analyzer to compile

Author: GuillaumeGomez

Cargo.lock

@@ -4021,6 +4021,7 @@ name = "rustc_lexer"
 version = "0.0.0"
 dependencies = [
  "expect-test",
+ "literal-escaper",
  "unicode-properties",
  "unicode-xid",
 ]

compiler/rustc_lexer/Cargo.toml

@@ -15,6 +15,7 @@ Rust lexer used by rustc. No stability guarantees are provided.
 # Note that this crate purposefully does not depend on other rustc crates
 [dependencies]
 unicode-xid = "0.2.0"
+literal-escaper = { path = "../../library/literal-escaper" }
 
 [dependencies.unicode-properties]
 version = "0.1.0"

compiler/rustc_lexer/src/lib.rs

@@ -31,6 +31,9 @@ mod cursor;
 #[cfg(test)]
 mod tests;
 
+// FIXME: This is needed for rust-analyzer. Remove this dependency once rust-analyzer uses
+// `literal-escaper`.
+pub use literal_escaper as unescape;
 use unicode_properties::UnicodeEmoji;
 pub use unicode_xid::UNICODE_VERSION as UNICODE_XID_VERSION;