Mark the feature as incomplete

Author: oli-obk

compiler/rustc_feature/src/active.rs

@@ -478,7 +478,7 @@ declare_features! (
     /// Allows using `#[optimize(X)]`.
     (active, optimize_attribute, "1.34.0", Some(54882), None),
     /// Allows using pattern types.
-    (active, pattern_types, "CURRENT_RUSTC_VERSION", Some(54882), None),
+    (incomplete, pattern_types, "CURRENT_RUSTC_VERSION", Some(54882), None),
     /// Allows `extern "platform-intrinsic" { ... }`.
     (active, platform_intrinsics, "1.4.0", Some(27731), None),
     /// Allows using `#![plugin(myplugin)]`.

tests/ui/type/pattern_types/bad_pat.rs

@@ -1,4 +1,5 @@
 #![feature(pattern_types)]
+#![allow(incomplete_features)]
 
 type NonNullU32_2 = u32 is 1..=;
 //~^ ERROR: inclusive range with no end

tests/ui/type/pattern_types/bad_pat.stderr

@@ -1,21 +1,21 @@
 error[E0586]: inclusive range with no end
-  --> $DIR/bad_pat.rs:3:29
+  --> $DIR/bad_pat.rs:4:29
    |
 LL | type NonNullU32_2 = u32 is 1..=;
    |                             ^^^ help: use `..` instead
    |
    = note: inclusive ranges must be bounded at the end (`..=b` or `a..=b`)
 
 error[E0586]: inclusive range with no end
-  --> $DIR/bad_pat.rs:5:26
+  --> $DIR/bad_pat.rs:6:26
    |
 LL | type Positive2 = i32 is 0..=;
    |                          ^^^ help: use `..` instead
    |
    = note: inclusive ranges must be bounded at the end (`..=b` or `a..=b`)
 
 error: "wildcard patterns are not permitted for pattern types"
-  --> $DIR/bad_pat.rs:7:19
+  --> $DIR/bad_pat.rs:8:19
    |
 LL | type Wild = () is _;
    |                   ^