Rollup merge of #55742 - F001:fix-55718, r=petrochenkov

Avoid panic when matching function call

Fix #55718

This bug is introduced by #53751. The original code checked `Def::AssociatedConst(..) | Def::Method(..)` before `pat_ty.no_bound_vars().expect("expected fn type")`. But somehow I exchanged the sequence carelessly. Sorry about that.

r? @petrochenkov

src/test/ui/match/match-fn-call.rs

@@ -0,0 +1,12 @@
+use std::path::Path;
+
+fn main() {
+    let path = Path::new("foo");
+    match path {
+        Path::new("foo") => println!("foo"),
+        //~^ ERROR expected tuple struct/variant
+        Path::new("bar") => println!("bar"),
+        //~^ ERROR expected tuple struct/variant
+        _ => (),
+    }
+}

src/test/ui/match/match-fn-call.stderr

@@ -0,0 +1,15 @@
+error[E0164]: expected tuple struct/variant, found method `<Path>::new`
+  --> $DIR/match-fn-call.rs:6:9
+   |
+LL |         Path::new("foo") => println!("foo"),
+   |         ^^^^^^^^^^^^^^^^ not a tuple variant or struct
+
+error[E0164]: expected tuple struct/variant, found method `<Path>::new`
+  --> $DIR/match-fn-call.rs:8:9
+   |
+LL |         Path::new("bar") => println!("bar"),
+   |         ^^^^^^^^^^^^^^^^ not a tuple variant or struct
+
+error: aborting due to 2 previous errors
+
+For more information about this error, try `rustc --explain E0164`.