Rollup merge of #90649 - cjgillot:reveal-all-2, r=lcnr

Run reveal_all on MIR when inlining is activated.

Fix logic error in #85254 which prevented the pass from running when needed.
Fixes #78442
r? ``@lcnr``

compiler/rustc_mir_transform/src/reveal_all.rs

@@ -11,7 +11,7 @@ impl<'tcx> MirPass<'tcx> for RevealAll {
     fn run_pass(&self, tcx: TyCtxt<'tcx>, body: &mut Body<'tcx>) {
         // This pass must run before inlining, since we insert callee bodies in RevealAll mode.
         // Do not apply this transformation to generators.
-        if (tcx.sess.mir_opt_level() >= 3 || !super::inline::is_enabled(tcx))
+        if (tcx.sess.mir_opt_level() >= 3 || super::inline::is_enabled(tcx))
             && body.generator.is_none()
         {
             let param_env = tcx.param_env_reveal_all_normalized(body.source.def_id());

src/test/mir-opt/issue-78192.rs

@@ -1,4 +1,4 @@
-// EMIT_MIR issue_78192.f.InstCombine.diff
+// compile-flags: -Zmir-opt-level=1 -Zinline-mir
 pub fn f<T>(a: &T) -> *const T {
     let b: &*const T = &(a as *const T);
     *b
@@ -7,3 +7,5 @@ pub fn f<T>(a: &T) -> *const T {
 fn main() {
     f(&2);
 }
+
+// EMIT_MIR issue_78192.f.InstCombine.diff