Deduplicate more sized errors on call exprs

Change the implicit `Sized` `Obligation` `Span` for call expressions to
include the whole expression. This aids the existing deduplication
machinery to reduce the number of errors caused by a single unsized
expression.

2 files changed, 9 insertions, 45 deletions

diff --git a/tests/ui/iterators/issue-28098.rs b/tests/ui/iterators/issue-28098.rs
index 80c77edae9e..62a90d90d12 100644
--- a/tests/ui/iterators/issue-28098.rs
+++ b/tests/ui/iterators/issue-28098.rs
@@ -2,14 +2,12 @@ fn main() {
     let _ = Iterator::next(&mut ());
     //~^ ERROR `()` is not an iterator
     //~| ERROR `()` is not an iterator
-    //~| ERROR `()` is not an iterator
 
     for _ in false {}
     //~^ ERROR `bool` is not an iterator
 
     let _ = Iterator::next(&mut ());
     //~^ ERROR `()` is not an iterator
-    //~| ERROR `()` is not an iterator
 
     other()
 }
@@ -20,11 +18,9 @@ pub fn other() {
     let _ = Iterator::next(&mut ());
     //~^ ERROR `()` is not an iterator
     //~| ERROR `()` is not an iterator
-    //~| ERROR `()` is not an iterator
 
     let _ = Iterator::next(&mut ());
     //~^ ERROR `()` is not an iterator
-    //~| ERROR `()` is not an iterator
 
     for _ in false {}
     //~^ ERROR `bool` is not an iterator
diff --git a/tests/ui/iterators/issue-28098.stderr b/tests/ui/iterators/issue-28098.stderr
index 3256e57d436..a724f03ad4a 100644
--- a/tests/ui/iterators/issue-28098.stderr
+++ b/tests/ui/iterators/issue-28098.stderr
@@ -8,16 +8,8 @@ LL |     let _ = Iterator::next(&mut ());
    |
    = help: the trait `Iterator` is not implemented for `()`
 
-error[E0277]: `()` is not an iterator
-  --> $DIR/issue-28098.rs:2:13
-   |
-LL |     let _ = Iterator::next(&mut ());
-   |             ^^^^^^^^^^^^^^^^^^^^^^^ `()` is not an iterator
-   |
-   = help: the trait `Iterator` is not implemented for `()`
-
 error[E0277]: `bool` is not an iterator
-  --> $DIR/issue-28098.rs:7:14
+  --> $DIR/issue-28098.rs:6:14
    |
 LL |     for _ in false {}
    |              ^^^^^ `bool` is not an iterator
@@ -26,7 +18,7 @@ LL |     for _ in false {}
    = note: required for `bool` to implement `IntoIterator`
 
 error[E0277]: `()` is not an iterator
-  --> $DIR/issue-28098.rs:10:28
+  --> $DIR/issue-28098.rs:9:28
    |
 LL |     let _ = Iterator::next(&mut ());
    |             -------------- ^^^^^^^ `()` is not an iterator
@@ -36,23 +28,15 @@ LL |     let _ = Iterator::next(&mut ());
    = help: the trait `Iterator` is not implemented for `()`
 
 error[E0277]: `()` is not an iterator
-  --> $DIR/issue-28098.rs:10:13
-   |
-LL |     let _ = Iterator::next(&mut ());
-   |             ^^^^^^^^^^^^^^^^^^^^^^^ `()` is not an iterator
-   |
-   = help: the trait `Iterator` is not implemented for `()`
-
-error[E0277]: `()` is not an iterator
   --> $DIR/issue-28098.rs:2:13
    |
 LL |     let _ = Iterator::next(&mut ());
-   |             ^^^^^^^^^^^^^^ `()` is not an iterator
+   |             ^^^^^^^^^^^^^^^^^^^^^^^ `()` is not an iterator
    |
    = help: the trait `Iterator` is not implemented for `()`
 
 error[E0277]: `()` is not an iterator
-  --> $DIR/issue-28098.rs:20:28
+  --> $DIR/issue-28098.rs:18:28
    |
 LL |     let _ = Iterator::next(&mut ());
    |             -------------- ^^^^^^^ `()` is not an iterator
@@ -62,15 +46,7 @@ LL |     let _ = Iterator::next(&mut ());
    = help: the trait `Iterator` is not implemented for `()`
 
 error[E0277]: `()` is not an iterator
-  --> $DIR/issue-28098.rs:20:13
-   |
-LL |     let _ = Iterator::next(&mut ());
-   |             ^^^^^^^^^^^^^^^^^^^^^^^ `()` is not an iterator
-   |
-   = help: the trait `Iterator` is not implemented for `()`
-
-error[E0277]: `()` is not an iterator
-  --> $DIR/issue-28098.rs:25:28
+  --> $DIR/issue-28098.rs:22:28
    |
 LL |     let _ = Iterator::next(&mut ());
    |             -------------- ^^^^^^^ `()` is not an iterator
@@ -79,16 +55,8 @@ LL |     let _ = Iterator::next(&mut ());
    |
    = help: the trait `Iterator` is not implemented for `()`
 
-error[E0277]: `()` is not an iterator
-  --> $DIR/issue-28098.rs:25:13
-   |
-LL |     let _ = Iterator::next(&mut ());
-   |             ^^^^^^^^^^^^^^^^^^^^^^^ `()` is not an iterator
-   |
-   = help: the trait `Iterator` is not implemented for `()`
-
 error[E0277]: `bool` is not an iterator
-  --> $DIR/issue-28098.rs:29:14
+  --> $DIR/issue-28098.rs:25:14
    |
 LL |     for _ in false {}
    |              ^^^^^ `bool` is not an iterator
@@ -97,13 +65,13 @@ LL |     for _ in false {}
    = note: required for `bool` to implement `IntoIterator`
 
 error[E0277]: `()` is not an iterator
-  --> $DIR/issue-28098.rs:20:13
+  --> $DIR/issue-28098.rs:18:13
    |
 LL |     let _ = Iterator::next(&mut ());
-   |             ^^^^^^^^^^^^^^ `()` is not an iterator
+   |             ^^^^^^^^^^^^^^^^^^^^^^^ `()` is not an iterator
    |
    = help: the trait `Iterator` is not implemented for `()`
 
-error: aborting due to 12 previous errors
+error: aborting due to 8 previous errors
 
 For more information about this error, try `rustc --explain E0277`.