Auto merge of #77124 - spastorino:const-exprs-rfc-2920, r=oli-obk

Implement const expressions and patterns (RFC 2920)

cc `@ecstatic-morse` `@lcnr` `@oli-obk` `@petrochenkov`

1 files changed, 10 insertions, 0 deletions

diff --git a/src/test/ui/inline-const/const-expr-array-init.rs b/src/test/ui/inline-const/const-expr-array-init.rs
new file mode 100644
index 00000000000..8bb5dab1fa0
--- /dev/null
+++ b/src/test/ui/inline-const/const-expr-array-init.rs
@@ -0,0 +1,10 @@
+// build-pass
+
+#![allow(incomplete_features)]
+#![feature(inline_const)]
+
+use std::cell::Cell;
+
+fn main() {
+    let _x = [const { Cell::new(0) }; 20];
+}