Bump rustc_lexer

Author: lnicola

Cargo.lock

@@ -14,7 +14,7 @@ doctest = false
 cov-mark = { version = "1.1", features = ["thread-local"] }
 itertools = "0.10.0"
 rowan = "=0.13.0-pre.3"
-rustc_lexer = { version = "714.0.0", package = "rustc-ap-rustc_lexer" }
+rustc_lexer = { version = "716.0.0", package = "rustc-ap-rustc_lexer" }
 rustc-hash = "1.1.0"
 arrayvec = "0.7"
 once_cell = "1.3.1"