Make confusable suggestions verbose

compiler/rustc_hir_typeck/src/method/suggest.rs

@@ -1280,7 +1280,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                         {
                             // We found a method with the same number of arguments as the method
                             // call expression the user wrote.
-                            err.span_suggestion(
+                            err.span_suggestion_verbose(
                                 span,
                                 format!("there is {an} method with a similar name"),
                                 similar_candidate.name,
@@ -1307,7 +1307,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                     {
                         // We have fn call expression and the argument count match the associated
                         // function we found.
-                        err.span_suggestion(
+                        err.span_suggestion_verbose(
                             span,
                             format!(
                                 "there is {an} {} with a similar name",
@@ -1328,7 +1328,7 @@ impl<'a, 'tcx> FnCtxt<'a, 'tcx> {
                     }
                 } else if let Mode::Path = mode {
                     // We have an associated item syntax and we found something that isn't an fn.
-                    err.span_suggestion(
+                    err.span_suggestion_verbose(
                         span,
                         format!(
                             "there is {an} {} with a similar name",

tests/ui/associated-item/associated-item-enum.stderr

@@ -5,10 +5,12 @@ LL | enum Enum { Variant }
    | --------- variant or associated item `mispellable` not found for this enum
 ...
 LL |     Enum::mispellable();
-   |           ^^^^^^^^^^^
-   |           |
-   |           variant or associated item not found in `Enum`
-   |           help: there is an associated function with a similar name: `misspellable`
+   |           ^^^^^^^^^^^ variant or associated item not found in `Enum`
+   |
+help: there is an associated function with a similar name
+   |
+LL |     Enum::misspellable();
+   |           ~~~~~~~~~~~~
 
 error[E0599]: no variant or associated item named `mispellable_trait` found for enum `Enum` in the current scope
   --> $DIR/associated-item-enum.rs:18:11
@@ -17,10 +19,12 @@ LL | enum Enum { Variant }
    | --------- variant or associated item `mispellable_trait` not found for this enum
 ...
 LL |     Enum::mispellable_trait();
-   |           ^^^^^^^^^^^^^^^^^
-   |           |
-   |           variant or associated item not found in `Enum`
-   |           help: there is an associated function with a similar name: `misspellable_trait`
+   |           ^^^^^^^^^^^^^^^^^ variant or associated item not found in `Enum`
+   |
+help: there is an associated function with a similar name
+   |
+LL |     Enum::misspellable_trait();
+   |           ~~~~~~~~~~~~~~~~~~
 
 error[E0599]: no variant or associated item named `MISPELLABLE` found for enum `Enum` in the current scope
   --> $DIR/associated-item-enum.rs:19:11
@@ -29,10 +33,12 @@ LL | enum Enum { Variant }
    | --------- variant or associated item `MISPELLABLE` not found for this enum
 ...
 LL |     Enum::MISPELLABLE;
-   |           ^^^^^^^^^^^
-   |           |
-   |           variant or associated item not found in `Enum`
-   |           help: there is an associated constant with a similar name: `MISSPELLABLE`
+   |           ^^^^^^^^^^^ variant or associated item not found in `Enum`
+   |
+help: there is an associated constant with a similar name
+   |
+LL |     Enum::MISSPELLABLE;
+   |           ~~~~~~~~~~~~
 
 error: aborting due to 3 previous errors
 

tests/ui/attributes/rustc_confusables.stderr

@@ -31,7 +31,12 @@ error[E0599]: no method named `inser` found for struct `rustc_confusables_across
   --> $DIR/rustc_confusables.rs:12:7
    |
 LL |     x.inser();
-   |       ^^^^^ help: there is a method with a similar name: `insert`
+   |       ^^^^^
+   |
+help: there is a method with a similar name
+   |
+LL |     x.insert();
+   |       ~~~~~~
 
 error[E0599]: no method named `foo` found for struct `rustc_confusables_across_crate::BTreeSet` in the current scope
   --> $DIR/rustc_confusables.rs:15:7

tests/ui/block-result/issue-3563.stderr

@@ -2,7 +2,12 @@ error[E0599]: no method named `b` found for reference `&Self` in the current sco
   --> $DIR/issue-3563.rs:3:17
    |
 LL |         || self.b()
-   |                 ^ help: there is a method with a similar name: `a`
+   |                 ^
+   |
+help: there is a method with a similar name
+   |
+LL |         || self.a()
+   |                 ~
 
 error: aborting due to 1 previous error
 

tests/ui/methods/issues/issue-105732.stderr

@@ -10,7 +10,12 @@ error[E0599]: no method named `g` found for reference `&Self` in the current sco
   --> $DIR/issue-105732.rs:10:14
    |
 LL |         self.g();
-   |              ^ help: there is a method with a similar name: `f`
+   |              ^
+   |
+help: there is a method with a similar name
+   |
+LL |         self.f();
+   |              ~
 
 error: aborting due to 2 previous errors
 

tests/ui/methods/method-not-found-but-doc-alias.stderr

@@ -5,7 +5,12 @@ LL | struct Foo;
    | ---------- method `quux` not found for this struct
 ...
 LL |     Foo.quux();
-   |         ^^^^ help: there is a method with a similar name: `bar`
+   |         ^^^^
+   |
+help: there is a method with a similar name
+   |
+LL |     Foo.bar();
+   |         ~~~
 
 error: aborting due to 1 previous error
 

tests/ui/object-pointer-types.stderr

@@ -5,7 +5,12 @@ LL |     fn owned(self: Box<Self>);
    |                    --------- the method might not be found because of this arbitrary self type
 ...
 LL |     x.owned();
-   |       ^^^^^ help: there is a method with a similar name: `to_owned`
+   |       ^^^^^
+   |
+help: there is a method with a similar name
+   |
+LL |     x.to_owned();
+   |       ~~~~~~~~
 
 error[E0599]: no method named `owned` found for mutable reference `&mut dyn Foo` in the current scope
   --> $DIR/object-pointer-types.rs:17:7

tests/ui/parser/emoji-identifiers.stderr

@@ -71,16 +71,17 @@ LL | struct 👀;
    | --------- function or associated item `full_of✨` not found for this struct
 ...
 LL |     👀::full_of✨()
-   |         ^^^^^^^^^
-   |         |
-   |         function or associated item not found in `👀`
-   |         help: there is an associated function with a similar name: `full_of_✨`
+   |         ^^^^^^^^^ function or associated item not found in `👀`
    |
 note: if you're trying to build a new `👀`, consider using `👀::full_of_✨` which returns `👀`
   --> $DIR/emoji-identifiers.rs:4:5
    |
 LL |     fn full_of_✨() -> 👀 {
    |     ^^^^^^^^^^^^^^^^^^^^^
+help: there is an associated function with a similar name
+   |
+LL |     👀::full_of_✨()
+   |         ~~~~~~~~~~
 
 error[E0425]: cannot find function `i_like_to_😄_a_lot` in this scope
   --> $DIR/emoji-identifiers.rs:13:13

tests/ui/resolve/typo-suggestion-mistyped-in-path.stderr

@@ -14,10 +14,12 @@ LL | struct Struct;
    | ------------- function or associated item `fob` not found for this struct
 ...
 LL |     Struct::fob();
-   |             ^^^
-   |             |
-   |             function or associated item not found in `Struct`
-   |             help: there is an associated function with a similar name: `foo`
+   |             ^^^ function or associated item not found in `Struct`
+   |
+help: there is an associated function with a similar name
+   |
+LL |     Struct::foo();
+   |             ~~~
 
 error[E0433]: failed to resolve: use of undeclared type `Struc`
   --> $DIR/typo-suggestion-mistyped-in-path.rs:27:5

tests/ui/rust-2018/trait-import-suggestions.stderr

@@ -40,7 +40,12 @@ error[E0599]: no method named `baz` found for type `u32` in the current scope
   --> $DIR/trait-import-suggestions.rs:29:7
    |
 LL |     x.baz();
-   |       ^^^ help: there is a method with a similar name: `bar`
+   |       ^^^
+   |
+help: there is a method with a similar name
+   |
+LL |     x.bar();
+   |       ~~~
 
 error[E0599]: no function or associated item named `from_str` found for type `u32` in the current scope
   --> $DIR/trait-import-suggestions.rs:30:18

tests/ui/self/arbitrary_self_type_mut_difference.stderr

@@ -2,25 +2,33 @@ error[E0599]: no method named `x` found for struct `Pin<&S>` in the current scop
   --> $DIR/arbitrary_self_type_mut_difference.rs:11:18
    |
 LL |     Pin::new(&S).x();
-   |                  ^ help: there is a method with a similar name: `y`
+   |                  ^
    |
 note: method is available for `Pin<&mut S>`
   --> $DIR/arbitrary_self_type_mut_difference.rs:6:5
    |
 LL |     fn x(self: Pin<&mut Self>) {}
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
+help: there is a method with a similar name
+   |
+LL |     Pin::new(&S).y();
+   |                  ~
 
 error[E0599]: no method named `y` found for struct `Pin<&mut S>` in the current scope
   --> $DIR/arbitrary_self_type_mut_difference.rs:12:22
    |
 LL |     Pin::new(&mut S).y();
-   |                      ^ help: there is a method with a similar name: `x`
+   |                      ^
    |
 note: method is available for `Pin<&S>`
   --> $DIR/arbitrary_self_type_mut_difference.rs:7:5
    |
 LL |     fn y(self: Pin<&Self>) {}
    |     ^^^^^^^^^^^^^^^^^^^^^^
+help: there is a method with a similar name
+   |
+LL |     Pin::new(&mut S).x();
+   |                      ~
 
 error: aborting due to 2 previous errors
 

tests/ui/suggestions/issue-109291.stderr

@@ -2,17 +2,18 @@ error[E0599]: no function or associated item named `forced_capture` found for st
   --> $DIR/issue-109291.rs:2:65
    |
 LL |     println!("Custom backtrace: {}", std::backtrace::Backtrace::forced_capture());
-   |                                                                 ^^^^^^^^^^^^^^
-   |                                                                 |
-   |                                                                 function or associated item not found in `Backtrace`
-   |                                                                 help: there is an associated function with a similar name: `force_capture`
+   |                                                                 ^^^^^^^^^^^^^^ function or associated item not found in `Backtrace`
    |
 note: if you're trying to build a new `Backtrace` consider using one of the following associated functions:
       Backtrace::capture
       Backtrace::force_capture
       Backtrace::disabled
       Backtrace::create
   --> $SRC_DIR/std/src/backtrace.rs:LL:COL
+help: there is an associated function with a similar name
+   |
+LL |     println!("Custom backtrace: {}", std::backtrace::Backtrace::force_capture());
+   |                                                                 ~~~~~~~~~~~~~
 
 error: aborting due to 1 previous error
 

tests/ui/suggestions/suggest-methods.stderr

@@ -17,19 +17,34 @@ error[E0599]: no method named `is_emtpy` found for struct `String` in the curren
   --> $DIR/suggest-methods.rs:22:15
    |
 LL |     let _ = s.is_emtpy();
-   |               ^^^^^^^^ help: there is a method with a similar name: `is_empty`
+   |               ^^^^^^^^
+   |
+help: there is a method with a similar name
+   |
+LL |     let _ = s.is_empty();
+   |               ~~~~~~~~
 
 error[E0599]: no method named `count_eos` found for type `u32` in the current scope
   --> $DIR/suggest-methods.rs:27:19
    |
 LL |     let _ = 63u32.count_eos();
-   |                   ^^^^^^^^^ help: there is a method with a similar name: `count_zeros`
+   |                   ^^^^^^^^^
+   |
+help: there is a method with a similar name
+   |
+LL |     let _ = 63u32.count_zeros();
+   |                   ~~~~~~~~~~~
 
 error[E0599]: no method named `count_o` found for type `u32` in the current scope
   --> $DIR/suggest-methods.rs:30:19
    |
 LL |     let _ = 63u32.count_o();
-   |                   ^^^^^^^ help: there is a method with a similar name: `count_ones`
+   |                   ^^^^^^^
+   |
+help: there is a method with a similar name
+   |
+LL |     let _ = 63u32.count_ones();
+   |                   ~~~~~~~~~~
 
 error: aborting due to 4 previous errors
 

tests/ui/traits/trait-upcasting/subtrait-method.stderr

@@ -2,66 +2,86 @@ error[E0599]: no method named `c` found for reference `&dyn Bar` in the current
   --> $DIR/subtrait-method.rs:55:9
    |
 LL |     bar.c();
-   |         ^ help: there is a method with a similar name: `a`
+   |         ^
    |
    = help: items from traits can only be used if the trait is implemented and in scope
 note: `Baz` defines an item `c`, perhaps you need to implement it
   --> $DIR/subtrait-method.rs:27:1
    |
 LL | trait Baz: Bar {
    | ^^^^^^^^^^^^^^
+help: there is a method with a similar name
+   |
+LL |     bar.a();
+   |         ~
 
 error[E0599]: no method named `b` found for reference `&dyn Foo` in the current scope
   --> $DIR/subtrait-method.rs:59:9
    |
 LL |     foo.b();
-   |         ^ help: there is a method with a similar name: `a`
+   |         ^
    |
    = help: items from traits can only be used if the trait is implemented and in scope
 note: `Bar` defines an item `b`, perhaps you need to implement it
   --> $DIR/subtrait-method.rs:17:1
    |
 LL | trait Bar: Foo {
    | ^^^^^^^^^^^^^^
+help: there is a method with a similar name
+   |
+LL |     foo.a();
+   |         ~
 
 error[E0599]: no method named `c` found for reference `&dyn Foo` in the current scope
   --> $DIR/subtrait-method.rs:61:9
    |
 LL |     foo.c();
-   |         ^ help: there is a method with a similar name: `a`
+   |         ^
    |
    = help: items from traits can only be used if the trait is implemented and in scope
 note: `Baz` defines an item `c`, perhaps you need to implement it
   --> $DIR/subtrait-method.rs:27:1
    |
 LL | trait Baz: Bar {
    | ^^^^^^^^^^^^^^
+help: there is a method with a similar name
+   |
+LL |     foo.a();
+   |         ~
 
 error[E0599]: no method named `b` found for reference `&dyn Foo` in the current scope
   --> $DIR/subtrait-method.rs:65:9
    |
 LL |     foo.b();
-   |         ^ help: there is a method with a similar name: `a`
+   |         ^
    |
    = help: items from traits can only be used if the trait is implemented and in scope
 note: `Bar` defines an item `b`, perhaps you need to implement it
   --> $DIR/subtrait-method.rs:17:1
    |
 LL | trait Bar: Foo {
    | ^^^^^^^^^^^^^^
+help: there is a method with a similar name
+   |
+LL |     foo.a();
+   |         ~
 
 error[E0599]: no method named `c` found for reference `&dyn Foo` in the current scope
   --> $DIR/subtrait-method.rs:67:9
    |
 LL |     foo.c();
-   |         ^ help: there is a method with a similar name: `a`
+   |         ^
    |
    = help: items from traits can only be used if the trait is implemented and in scope
 note: `Baz` defines an item `c`, perhaps you need to implement it
   --> $DIR/subtrait-method.rs:27:1
    |
 LL | trait Baz: Bar {
    | ^^^^^^^^^^^^^^
+help: there is a method with a similar name
+   |
+LL |     foo.a();
+   |         ~
 
 error: aborting due to 5 previous errors