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-rw-r--r--src/test/incremental/change_private_impl_method/struct_point.rs11
-rw-r--r--src/test/incremental/change_private_impl_method_cc/struct_point.rs24
-rw-r--r--src/test/incremental/hashes/inherent_impls.rs128
-rw-r--r--src/test/incremental/hashes/trait_impls.rs404
4 files changed, 547 insertions, 20 deletions
diff --git a/src/test/incremental/change_private_impl_method/struct_point.rs b/src/test/incremental/change_private_impl_method/struct_point.rs
index 8fa34bde170..46e5a88eef9 100644
--- a/src/test/incremental/change_private_impl_method/struct_point.rs
+++ b/src/test/incremental/change_private_impl_method/struct_point.rs
@@ -20,9 +20,8 @@
 
 #![rustc_partition_translated(module="struct_point-point", cfg="rpass2")]
 
-// FIXME(#37121) -- the following two modules *should* be reused but are not
-#![rustc_partition_translated(module="struct_point-fn_calls_methods_in_same_impl", cfg="rpass2")]
-#![rustc_partition_translated(module="struct_point-fn_calls_methods_in_another_impl", cfg="rpass2")]
+#![rustc_partition_reused(module="struct_point-fn_calls_methods_in_same_impl", cfg="rpass2")]
+#![rustc_partition_reused(module="struct_point-fn_calls_methods_in_another_impl", cfg="rpass2")]
 #![rustc_partition_reused(module="struct_point-fn_make_struct", cfg="rpass2")]
 #![rustc_partition_reused(module="struct_point-fn_read_field", cfg="rpass2")]
 #![rustc_partition_reused(module="struct_point-fn_write_field", cfg="rpass2")]
@@ -60,8 +59,7 @@ mod point {
 mod fn_calls_methods_in_same_impl {
     use point::Point;
 
-    // FIXME(#37121) -- we should not need to typeck this again
-    #[rustc_dirty(label="TypeckItemBody", cfg="rpass2")]
+    #[rustc_clean(label="TypeckItemBody", cfg="rpass2")]
     pub fn check() {
         let x = Point { x: 2.0, y: 2.0 };
         x.distance_from_origin();
@@ -72,8 +70,7 @@ mod fn_calls_methods_in_same_impl {
 mod fn_calls_methods_in_another_impl {
     use point::Point;
 
-    // FIXME(#37121) -- we should not need to typeck this again
-    #[rustc_dirty(label="TypeckItemBody", cfg="rpass2")]
+    #[rustc_clean(label="TypeckItemBody", cfg="rpass2")]
     pub fn check() {
         let mut x = Point { x: 2.0, y: 2.0 };
         x.translate(3.0, 3.0);
diff --git a/src/test/incremental/change_private_impl_method_cc/struct_point.rs b/src/test/incremental/change_private_impl_method_cc/struct_point.rs
index d8e5fbadad8..bb7f7025c59 100644
--- a/src/test/incremental/change_private_impl_method_cc/struct_point.rs
+++ b/src/test/incremental/change_private_impl_method_cc/struct_point.rs
@@ -19,12 +19,13 @@
 #![feature(stmt_expr_attributes)]
 #![allow(dead_code)]
 
-// FIXME(#37333) -- the following modules *should* be reused but are not
+#![rustc_partition_reused(module="struct_point-fn_read_field", cfg="rpass2")]
+#![rustc_partition_reused(module="struct_point-fn_write_field", cfg="rpass2")]
+#![rustc_partition_reused(module="struct_point-fn_make_struct", cfg="rpass2")]
+
+// FIXME(#37720) these two should be reused, but data gets entangled across crates
 #![rustc_partition_translated(module="struct_point-fn_calls_methods_in_same_impl", cfg="rpass2")]
 #![rustc_partition_translated(module="struct_point-fn_calls_methods_in_another_impl", cfg="rpass2")]
-#![rustc_partition_translated(module="struct_point-fn_make_struct", cfg="rpass2")]
-#![rustc_partition_translated(module="struct_point-fn_read_field", cfg="rpass2")]
-#![rustc_partition_translated(module="struct_point-fn_write_field", cfg="rpass2")]
 
 extern crate point;
 
@@ -32,7 +33,7 @@ extern crate point;
 mod fn_calls_methods_in_same_impl {
     use point::Point;
 
-    // FIXME(#37333) -- we should not need to typeck this again
+    // FIXME(#37720) data gets entangled across crates
     #[rustc_dirty(label="TypeckItemBody", cfg="rpass2")]
     pub fn check() {
         let x = Point { x: 2.0, y: 2.0 };
@@ -44,9 +45,9 @@ mod fn_calls_methods_in_same_impl {
 mod fn_calls_methods_in_another_impl {
     use point::Point;
 
-    // FIXME(#37333) -- we should not need to typeck this again
+    // FIXME(#37720) data gets entangled across crates
     #[rustc_dirty(label="TypeckItemBody", cfg="rpass2")]
-    pub fn check() {
+    pub fn dirty() {
         let mut x = Point { x: 2.0, y: 2.0 };
         x.translate(3.0, 3.0);
     }
@@ -56,8 +57,7 @@ mod fn_calls_methods_in_another_impl {
 mod fn_make_struct {
     use point::Point;
 
-    // FIXME(#37333) -- we should not need to typeck this again
-    #[rustc_dirty(label="TypeckItemBody", cfg="rpass2")]
+    #[rustc_clean(label="TypeckItemBody", cfg="rpass2")]
     pub fn make_origin() -> Point {
         Point { x: 2.0, y: 2.0 }
     }
@@ -67,8 +67,7 @@ mod fn_make_struct {
 mod fn_read_field {
     use point::Point;
 
-    // FIXME(#37333) -- we should not need to typeck this again
-    #[rustc_dirty(label="TypeckItemBody", cfg="rpass2")]
+    #[rustc_clean(label="TypeckItemBody", cfg="rpass2")]
     pub fn get_x(p: Point) -> f32 {
         p.x
     }
@@ -78,8 +77,7 @@ mod fn_read_field {
 mod fn_write_field {
     use point::Point;
 
-    // FIXME(#37333) -- we should not need to typeck this again
-    #[rustc_dirty(label="TypeckItemBody", cfg="rpass2")]
+    #[rustc_clean(label="TypeckItemBody", cfg="rpass2")]
     pub fn inc_x(p: &mut Point) {
         p.x += 1.0;
     }
diff --git a/src/test/incremental/hashes/inherent_impls.rs b/src/test/incremental/hashes/inherent_impls.rs
new file mode 100644
index 00000000000..f7a390e8745
--- /dev/null
+++ b/src/test/incremental/hashes/inherent_impls.rs
@@ -0,0 +1,128 @@
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+
+// This test case tests the incremental compilation hash (ICH) implementation
+// for let expressions.
+
+// The general pattern followed here is: Change one thing between rev1 and rev2
+// and make sure that the hash has changed, then change nothing between rev2 and
+// rev3 and make sure that the hash has not changed.
+
+// must-compile-successfully
+// revisions: cfail1 cfail2 cfail3
+// compile-flags: -Z query-dep-graph
+
+
+#![allow(warnings)]
+#![feature(rustc_attrs)]
+#![crate_type="rlib"]
+
+struct Foo;
+
+// Change Method Name -----------------------------------------------------------
+#[cfg(cfail1)]
+impl Foo {
+    pub fn method_name() { }
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+impl Foo {
+    #[rustc_dirty(label="Hir", cfg="cfail2")]
+    #[rustc_clean(label="Hir", cfg="cfail3")]
+    #[rustc_metadata_dirty(cfg="cfail2")]
+    #[rustc_metadata_clean(cfg="cfail3")]
+    pub fn method_name2() { }
+}
+
+// Change Method Body -----------------------------------------------------------
+//
+// This should affect the method itself, but not the impl.
+#[cfg(cfail1)]
+impl Foo {
+    pub fn method_body() { }
+}
+
+#[cfg(not(cfail1))]
+#[rustc_clean(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_clean(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+impl Foo {
+    #[rustc_dirty(label="Hir", cfg="cfail2")]
+    #[rustc_clean(label="Hir", cfg="cfail3")]
+    #[rustc_metadata_dirty(cfg="cfail2")]
+    #[rustc_metadata_clean(cfg="cfail3")]
+    pub fn method_body() {
+        println!("Hello, world!");
+    }
+}
+
+// Change Method Privacy -----------------------------------------------------------
+#[cfg(cfail1)]
+impl Foo {
+    pub fn method_privacy() { }
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+impl Foo {
+    #[rustc_dirty(label="Hir", cfg="cfail2")]
+    #[rustc_clean(label="Hir", cfg="cfail3")]
+    #[rustc_metadata_dirty(cfg="cfail2")]
+    #[rustc_metadata_clean(cfg="cfail3")]
+    fn method_privacy() { }
+}
+
+// Change Method Selfness -----------------------------------------------------------
+#[cfg(cfail1)]
+impl Foo {
+    pub fn method_selfness() { }
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+impl Foo {
+    #[rustc_dirty(label="Hir", cfg="cfail2")]
+    #[rustc_clean(label="Hir", cfg="cfail3")]
+    #[rustc_metadata_dirty(cfg="cfail2")]
+    #[rustc_metadata_clean(cfg="cfail3")]
+    pub fn method_selfness(&self) { }
+}
+
+// Change Method Selfmutness -----------------------------------------------------------
+#[cfg(cfail1)]
+impl Foo {
+    pub fn method_selfmutness(&self) { }
+}
+
+#[cfg(not(cfail1))]
+#[rustc_clean(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_clean(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+impl Foo {
+    #[rustc_dirty(label="Hir", cfg="cfail2")]
+    #[rustc_clean(label="Hir", cfg="cfail3")]
+    #[rustc_metadata_dirty(cfg="cfail2")]
+    #[rustc_metadata_clean(cfg="cfail3")]
+    pub fn method_selfmutness(&mut self) { }
+}
+
diff --git a/src/test/incremental/hashes/trait_impls.rs b/src/test/incremental/hashes/trait_impls.rs
new file mode 100644
index 00000000000..500aaf52324
--- /dev/null
+++ b/src/test/incremental/hashes/trait_impls.rs
@@ -0,0 +1,404 @@
+// Copyright 2016 The Rust Project Developers. See the COPYRIGHT
+// file at the top-level directory of this distribution and at
+// http://rust-lang.org/COPYRIGHT.
+//
+// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
+// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
+// option. This file may not be copied, modified, or distributed
+// except according to those terms.
+
+
+// This test case tests the incremental compilation hash (ICH) implementation
+// for let expressions.
+
+// The general pattern followed here is: Change one thing between rev1 and rev2
+// and make sure that the hash has changed, then change nothing between rev2 and
+// rev3 and make sure that the hash has not changed.
+
+// must-compile-successfully
+// revisions: cfail1 cfail2 cfail3
+// compile-flags: -Z query-dep-graph
+
+
+#![allow(warnings)]
+#![feature(rustc_attrs)]
+#![feature(specialization)]
+#![crate_type="rlib"]
+
+struct Foo;
+
+// Change Method Name -----------------------------------------------------------
+
+#[cfg(cfail1)]
+pub trait ChangeMethodNameTrait {
+    fn method_name();
+}
+
+#[cfg(cfail1)]
+impl ChangeMethodNameTrait for Foo {
+    fn method_name() { }
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+pub trait ChangeMethodNameTrait {
+    #[rustc_dirty(label="Hir", cfg="cfail2")]
+    #[rustc_clean(label="Hir", cfg="cfail3")]
+    #[rustc_metadata_dirty(cfg="cfail2")]
+    #[rustc_metadata_clean(cfg="cfail3")]
+    fn method_name2();
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+impl ChangeMethodNameTrait for Foo {
+    #[rustc_dirty(label="Hir", cfg="cfail2")]
+    #[rustc_clean(label="Hir", cfg="cfail3")]
+    #[rustc_metadata_dirty(cfg="cfail2")]
+    #[rustc_metadata_clean(cfg="cfail3")]
+    fn method_name2() { }
+}
+
+// Change Method Body -----------------------------------------------------------
+//
+// This should affect the method itself, but not the trait.
+
+pub trait ChangeMethodBodyTrait {
+    fn method_name();
+}
+
+#[cfg(cfail1)]
+impl ChangeMethodBodyTrait for Foo {
+    fn method_name() { }
+}
+
+#[cfg(not(cfail1))]
+#[rustc_clean(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_clean(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+impl ChangeMethodBodyTrait for Foo {
+    #[rustc_dirty(label="Hir", cfg="cfail2")]
+    #[rustc_clean(label="Hir", cfg="cfail3")]
+    #[rustc_metadata_dirty(cfg="cfail2")]
+    #[rustc_metadata_clean(cfg="cfail3")]
+    fn method_name() {
+        ()
+    }
+}
+
+// Change Method Selfness -----------------------------------------------------------
+
+#[cfg(cfail1)]
+pub trait ChangeMethodSelfnessTrait {
+    fn method_name();
+}
+
+#[cfg(cfail1)]
+impl ChangeMethodSelfnessTrait for Foo {
+    fn method_name() { }
+}
+
+#[cfg(not(cfail1))]
+pub trait ChangeMethodSelfnessTrait {
+    fn method_name(&self);
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+impl ChangeMethodSelfnessTrait for Foo {
+    #[rustc_dirty(label="Hir", cfg="cfail2")]
+    #[rustc_clean(label="Hir", cfg="cfail3")]
+    #[rustc_metadata_dirty(cfg="cfail2")]
+    #[rustc_metadata_clean(cfg="cfail3")]
+    fn method_name(&self) {
+        ()
+    }
+}
+
+// Change Method Selfness -----------------------------------------------------------
+
+#[cfg(cfail1)]
+pub trait RemoveMethodSelfnessTrait {
+    fn method_name(&self);
+}
+
+#[cfg(cfail1)]
+impl RemoveMethodSelfnessTrait for Foo {
+    fn method_name(&self) { }
+}
+
+#[cfg(not(cfail1))]
+pub trait RemoveMethodSelfnessTrait {
+    fn method_name();
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+impl RemoveMethodSelfnessTrait for Foo {
+    #[rustc_dirty(label="Hir", cfg="cfail2")]
+    #[rustc_clean(label="Hir", cfg="cfail3")]
+    #[rustc_metadata_dirty(cfg="cfail2")]
+    #[rustc_metadata_clean(cfg="cfail3")]
+    fn method_name() {
+        ()
+    }
+}
+
+// Change Method Selfmutness -----------------------------------------------------------
+
+#[cfg(cfail1)]
+pub trait ChangeMethodSelfmutnessTrait {
+    fn method_name(&self);
+}
+
+#[cfg(cfail1)]
+impl ChangeMethodSelfmutnessTrait for Foo {
+    fn method_name(&self) { }
+}
+
+#[cfg(not(cfail1))]
+pub trait ChangeMethodSelfmutnessTrait {
+    fn method_name(&mut self);
+}
+
+#[cfg(not(cfail1))]
+#[rustc_clean(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+impl ChangeMethodSelfmutnessTrait for Foo {
+    #[rustc_dirty(label="Hir", cfg="cfail2")]
+    #[rustc_clean(label="Hir", cfg="cfail3")]
+    #[rustc_metadata_dirty(cfg="cfail2")]
+    #[rustc_metadata_clean(cfg="cfail3")]
+    fn method_name(&mut self) {
+        ()
+    }
+}
+
+// Change item kind -----------------------------------------------------------
+
+#[cfg(cfail1)]
+pub trait ChangeItemKindTrait {
+    fn name();
+}
+
+#[cfg(cfail1)]
+impl ChangeItemKindTrait for Foo {
+    fn name() { }
+}
+
+#[cfg(not(cfail1))]
+pub trait ChangeItemKindTrait {
+    type name;
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+impl ChangeItemKindTrait for Foo {
+    type name = ();
+}
+
+// Remove item -----------------------------------------------------------
+
+#[cfg(cfail1)]
+pub trait RemoveItemTrait {
+    type TypeName;
+    fn method_name();
+}
+
+#[cfg(cfail1)]
+impl RemoveItemTrait for Foo {
+    type TypeName = ();
+    fn method_name() { }
+}
+
+#[cfg(not(cfail1))]
+pub trait RemoveItemTrait {
+    type TypeName;
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+impl RemoveItemTrait for Foo {
+    type TypeName = ();
+}
+
+// Add item -----------------------------------------------------------
+
+#[cfg(cfail1)]
+pub trait AddItemTrait {
+    type TypeName;
+}
+
+#[cfg(cfail1)]
+impl AddItemTrait for Foo {
+    type TypeName = ();
+}
+
+#[cfg(not(cfail1))]
+pub trait AddItemTrait {
+    type TypeName;
+    fn method_name();
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+impl AddItemTrait for Foo {
+    type TypeName = ();
+    fn method_name() { }
+}
+
+// Change has-value -----------------------------------------------------------
+
+#[cfg(cfail1)]
+pub trait ChangeHasValueTrait {
+    fn method_name();
+}
+
+#[cfg(cfail1)]
+impl ChangeHasValueTrait for Foo {
+    fn method_name() { }
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+pub trait ChangeHasValueTrait {
+    fn method_name() { }
+}
+
+#[cfg(not(cfail1))]
+#[rustc_clean(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+impl ChangeHasValueTrait for Foo {
+    fn method_name() { }
+}
+
+// Add default
+
+pub trait AddDefaultTrait {
+    fn method_name();
+}
+
+#[cfg(cfail1)]
+impl AddDefaultTrait for Foo {
+    fn method_name() { }
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+impl AddDefaultTrait for Foo {
+    default fn method_name() { }
+}
+
+// Remove default
+
+pub trait RemoveDefaultTrait {
+    fn method_name();
+}
+
+#[cfg(cfail1)]
+impl RemoveDefaultTrait for Foo {
+    default fn method_name() { }
+}
+
+#[cfg(not(cfail1))]
+#[rustc_dirty(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+impl RemoveDefaultTrait for Foo {
+    fn method_name() { }
+}
+
+// Add arguments
+
+#[cfg(cfail1)]
+pub trait AddArgumentTrait {
+    fn method_name(&self);
+}
+
+#[cfg(cfail1)]
+impl AddArgumentTrait for Foo {
+    fn method_name(&self) { }
+}
+
+#[cfg(not(cfail1))]
+pub trait AddArgumentTrait {
+    fn method_name(&self, x: u32);
+}
+
+#[cfg(not(cfail1))]
+#[rustc_clean(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+impl AddArgumentTrait for Foo {
+    #[rustc_dirty(label="Hir", cfg="cfail2")]
+    #[rustc_clean(label="Hir", cfg="cfail3")]
+    #[rustc_metadata_dirty(cfg="cfail2")]
+    #[rustc_metadata_clean(cfg="cfail3")]
+    fn method_name(&self, _x: u32) { }
+}
+
+// Change argument type
+
+#[cfg(cfail1)]
+pub trait ChangeArgumentTypeTrait {
+    fn method_name(&self, x: u32);
+}
+
+#[cfg(cfail1)]
+impl ChangeArgumentTypeTrait for Foo {
+    fn method_name(&self, _x: u32) { }
+}
+
+#[cfg(not(cfail1))]
+pub trait ChangeArgumentTypeTrait {
+    fn method_name(&self, x: char);
+}
+
+#[cfg(not(cfail1))]
+#[rustc_clean(label="Hir", cfg="cfail2")]
+#[rustc_clean(label="Hir", cfg="cfail3")]
+#[rustc_metadata_dirty(cfg="cfail2")]
+#[rustc_metadata_clean(cfg="cfail3")]
+impl ChangeArgumentTypeTrait for Foo {
+    #[rustc_dirty(label="Hir", cfg="cfail2")]
+    #[rustc_clean(label="Hir", cfg="cfail3")]
+    #[rustc_metadata_dirty(cfg="cfail2")]
+    #[rustc_metadata_clean(cfg="cfail3")]
+    fn method_name(&self, _x: char) { }
+}
+