1830b80c2d
Revert the lexing of `c"…"` string literals Fixes \[after beta-backport\] #113235. Further progress is tracked in #113333. This PR *manually* reverts parts of #108801 (since a git-revert would've been too coarse-grained & messy) and git-reverts #111647. CC `@fee1-dead` (#108801) `@klensy` (#111647) r? `@compiler-errors` `@rustbot` label F-c_str_literals beta-nominated