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, 14 insertions, 0 deletions

diff --git a/src/test/ui/inline-const/const-expr-basic.rs b/src/test/ui/inline-const/const-expr-basic.rs
new file mode 100644
index 00000000000..9254c96a1e7
--- /dev/null
+++ b/src/test/ui/inline-const/const-expr-basic.rs
@@ -0,0 +1,14 @@
+// run-pass
+
+#![allow(incomplete_features)]
+#![feature(inline_const)]
+fn foo() -> i32 {
+    const {
+        let x = 5 + 10;
+        x / 3
+    }
+}
+
+fn main() {
+    assert_eq!(5, foo());
+}