Make the default suggestions show the full patch output

Before

```
error: almost complete ascii range
  --> tests/ui/almost_complete_range.rs:17:17
   |
LL |         let _ = ('a') ..'z';
   |                 ^^^^^^--^^^
   |                       |
   |                       help: use an inclusive range: `..=`
   |
   = note: `-D clippy::almost-complete-range` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::almost_complete_range)]`
```

After

```
error: almost complete ascii range
  --> tests/ui/almost_complete_range.rs:17:17
   |
LL |         let _ = ('a') ..'z';
   |                 ^^^^^^^^^^^
   |
   = note: `-D clippy::almost-complete-range` implied by `-D warnings`
   = help: to override `-D warnings` add `#[allow(clippy::almost_complete_range)]`
help: use an inclusive range
   |
LL |         let _ = ('a') ..='z';
   |                       ~~~
```

compiler/rustc_errors/src/diagnostic.rs

@@ -979,7 +979,7 @@ impl<'a, G: EmissionGuarantee> Diag<'a, G> {
             msg,
             suggestion,
             applicability,
-            SuggestionStyle::ShowCode,
+            SuggestionStyle::ShowAlways,
         );
         self
     } }

src/tools/clippy/tests/ui-toml/array_size_threshold/array_size_threshold.stderr

@@ -2,12 +2,14 @@ error: large array defined as const
   --> tests/ui-toml/array_size_threshold/array_size_threshold.rs:4:1
    |
 LL | const ABOVE: [u8; 11] = [0; 11];
-   | -----^^^^^^^^^^^^^^^^^^^^^^^^^^^
-   | |
-   | help: make this a static item: `static`
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
    = note: `-D clippy::large-const-arrays` implied by `-D warnings`
    = help: to override `-D warnings` add `#[allow(clippy::large_const_arrays)]`
+help: make this a static item
+   |
+LL | static ABOVE: [u8; 11] = [0; 11];
+   | ~~~~~~
 
 error: allocating a local array larger than 10 bytes
   --> tests/ui-toml/array_size_threshold/array_size_threshold.rs:4:25

src/tools/clippy/tests/ui-toml/decimal_literal_representation/decimal_literal_representation.stderr

@@ -2,10 +2,14 @@ error: integer literal has a better hexadecimal representation
   --> tests/ui-toml/decimal_literal_representation/decimal_literal_representation.rs:4:13
    |
 LL |     let _ = 16777215;
-   |             ^^^^^^^^ help: consider: `0x00FF_FFFF`
+   |             ^^^^^^^^
    |
    = note: `-D clippy::decimal-literal-representation` implied by `-D warnings`
    = help: to override `-D warnings` add `#[allow(clippy::decimal_literal_representation)]`
+help: consider
+   |
+LL |     let _ = 0x00FF_FFFF;
+   |             ~~~~~~~~~~~
 
 error: aborting due to 1 previous error
 

src/tools/clippy/tests/ui-toml/explicit_iter_loop/explicit_iter_loop.stderr

@@ -2,16 +2,25 @@ error: it is more concise to loop over references to containers instead of using
   --> tests/ui-toml/explicit_iter_loop/explicit_iter_loop.rs:6:14
    |
 LL |     for _ in rmvec.iter() {}
-   |              ^^^^^^^^^^^^ help: to write this more concisely, try: `&*rmvec`
+   |              ^^^^^^^^^^^^
    |
    = note: `-D clippy::explicit-iter-loop` implied by `-D warnings`
    = help: to override `-D warnings` add `#[allow(clippy::explicit_iter_loop)]`
+help: to write this more concisely, try
+   |
+LL |     for _ in &*rmvec {}
+   |              ~~~~~~~
 
 error: it is more concise to loop over references to containers instead of using explicit iteration methods
   --> tests/ui-toml/explicit_iter_loop/explicit_iter_loop.rs:8:14
    |
 LL |     for _ in rmvec.iter_mut() {}
-   |              ^^^^^^^^^^^^^^^^ help: to write this more concisely, try: `&mut *rmvec`
+   |              ^^^^^^^^^^^^^^^^
+   |
+help: to write this more concisely, try
+   |
+LL |     for _ in &mut *rmvec {}
+   |              ~~~~~~~~~~~
 
 error: aborting due to 2 previous errors
 

src/tools/clippy/tests/ui-toml/large_futures/large_futures.stderr

@@ -2,10 +2,14 @@ error: large future with a size of 1026 bytes
   --> tests/ui-toml/large_futures/large_futures.rs:18:5
    |
 LL |     should_warn().await;
-   |     ^^^^^^^^^^^^^ help: consider `Box::pin` on it: `Box::pin(should_warn())`
+   |     ^^^^^^^^^^^^^
    |
    = note: `-D clippy::large-futures` implied by `-D warnings`
    = help: to override `-D warnings` add `#[allow(clippy::large_futures)]`
+help: consider `Box::pin` on it
+   |
+LL |     Box::pin(should_warn()).await;
+   |     ~~~~~~~~~~~~~~~~~~~~~~~
 
 error: aborting due to 1 previous error
 

src/tools/clippy/tests/ui-toml/large_types_passed_by_value/large_types_passed_by_value.stderr

@@ -2,10 +2,14 @@ error: this argument (513 byte) is passed by value, but might be more efficient
   --> tests/ui-toml/large_types_passed_by_value/large_types_passed_by_value.rs:4:11
    |
 LL | fn f2(_v: [u8; 513]) {}
-   |           ^^^^^^^^^ help: consider passing by reference instead: `&[u8; 513]`
+   |           ^^^^^^^^^
    |
    = note: `-D clippy::large-types-passed-by-value` implied by `-D warnings`
    = help: to override `-D warnings` add `#[allow(clippy::large_types_passed_by_value)]`
+help: consider passing by reference instead
+   |
+LL | fn f2(_v: &[u8; 513]) {}
+   |           ~~~~~~~~~~
 
 error: aborting due to 1 previous error
 

src/tools/clippy/tests/ui-toml/lint_decimal_readability/test.stderr

@@ -2,19 +2,27 @@ error: digits grouped inconsistently by underscores
   --> tests/ui-toml/lint_decimal_readability/test.rs:19:18
    |
 LL |     let _fail1 = 100_200_300.123456789;
-   |                  ^^^^^^^^^^^^^^^^^^^^^ help: consider: `100_200_300.123_456_789`
+   |                  ^^^^^^^^^^^^^^^^^^^^^
    |
    = note: `-D clippy::inconsistent-digit-grouping` implied by `-D warnings`
    = help: to override `-D warnings` add `#[allow(clippy::inconsistent_digit_grouping)]`
+help: consider
+   |
+LL |     let _fail1 = 100_200_300.123_456_789;
+   |                  ~~~~~~~~~~~~~~~~~~~~~~~
 
 error: long literal lacking separators
   --> tests/ui-toml/lint_decimal_readability/test.rs:22:18
    |
 LL |     let _fail2 = 100200300.300200100;
-   |                  ^^^^^^^^^^^^^^^^^^^ help: consider: `100_200_300.300_200_100`
+   |                  ^^^^^^^^^^^^^^^^^^^
    |
    = note: `-D clippy::unreadable-literal` implied by `-D warnings`
    = help: to override `-D warnings` add `#[allow(clippy::unreadable_literal)]`
+help: consider
+   |
+LL |     let _fail2 = 100_200_300.300_200_100;
+   |                  ~~~~~~~~~~~~~~~~~~~~~~~
 
 error: aborting due to 2 previous errors
 

src/tools/clippy/tests/ui-toml/manual_let_else/manual_let_else.stderr

@@ -6,10 +6,14 @@ LL | |
 LL | |         Foo::A(x) => x,
 LL | |         Foo::B => return,
 LL | |     };
-   | |______^ help: consider writing: `let Foo::A(x) = Foo::A(1) else { return };`
+   | |______^
    |
    = note: `-D clippy::manual-let-else` implied by `-D warnings`
    = help: to override `-D warnings` add `#[allow(clippy::manual_let_else)]`
+help: consider writing
+   |
+LL |     let Foo::A(x) = Foo::A(1) else { return };
+   |
 
 error: aborting due to 1 previous error
 

src/tools/clippy/tests/ui-toml/min_rust_version/min_rust_version.stderr

@@ -2,10 +2,14 @@ error: you are using an explicit closure for cloning elements
   --> tests/ui-toml/min_rust_version/min_rust_version.rs:74:26
    |
 LL |     let _: Option<u64> = Some(&16).map(|b| *b);
-   |                          ^^^^^^^^^^^^^^^^^^^^^ help: consider calling the dedicated `cloned` method: `Some(&16).cloned()`
+   |                          ^^^^^^^^^^^^^^^^^^^^^
    |
    = note: `-D clippy::map-clone` implied by `-D warnings`
    = help: to override `-D warnings` add `#[allow(clippy::map_clone)]`
+help: consider calling the dedicated `cloned` method
+   |
+LL |     let _: Option<u64> = Some(&16).cloned();
+   |                          ~~~~~~~~~~~~~~~~~~
 
 error: aborting due to 1 previous error
 

src/tools/clippy/tests/ui-toml/missing_enforced_import_rename/conf_missing_enforced_import_rename.stderr

@@ -2,40 +2,69 @@ error: this import should be renamed
   --> tests/ui-toml/missing_enforced_import_rename/conf_missing_enforced_import_rename.rs:5:20
    |
 LL | use std::process::{exit as wrong_exit, Child as Kid};
-   |                    ^^^^^^^^^^^^^^^^^^ help: try: `exit as goodbye`
+   |                    ^^^^^^^^^^^^^^^^^^
    |
    = note: `-D clippy::missing-enforced-import-renames` implied by `-D warnings`
    = help: to override `-D warnings` add `#[allow(clippy::missing_enforced_import_renames)]`
+help: try
+   |
+LL | use std::process::{exit as goodbye, Child as Kid};
+   |                    ~~~~~~~~~~~~~~~
 
 error: this import should be renamed
   --> tests/ui-toml/missing_enforced_import_rename/conf_missing_enforced_import_rename.rs:6:1
    |
 LL | use std::thread::sleep;
-   | ^^^^^^^^^^^^^^^^^^^^^^ help: try: `use std::thread::sleep as thread_sleep`
+   | ^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: try
+   |
+LL | use std::thread::sleep as thread_sleep;
+   | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 error: this import should be renamed
   --> tests/ui-toml/missing_enforced_import_rename/conf_missing_enforced_import_rename.rs:9:11
    |
 LL |     any::{type_name, Any},
-   |           ^^^^^^^^^ help: try: `type_name as ident`
+   |           ^^^^^^^^^
+   |
+help: try
+   |
+LL |     any::{type_name as ident, Any},
+   |           ~~~~~~~~~~~~~~~~~~
 
 error: this import should be renamed
   --> tests/ui-toml/missing_enforced_import_rename/conf_missing_enforced_import_rename.rs:10:5
    |
 LL |     clone,
-   |     ^^^^^ help: try: `clone as foo`
+   |     ^^^^^
+   |
+help: try
+   |
+LL |     clone as foo,
+   |     ~~~~~~~~~~~~
 
 error: this import should be renamed
   --> tests/ui-toml/missing_enforced_import_rename/conf_missing_enforced_import_rename.rs:11:5
    |
 LL |     sync :: Mutex,
-   |     ^^^^^^^^^^^^^ help: try: `sync :: Mutex as StdMutie`
+   |     ^^^^^^^^^^^^^
+   |
+help: try
+   |
+LL |     sync :: Mutex as StdMutie,
+   |     ~~~~~~~~~~~~~~~~~~~~~~~~~
 
 error: this import should be renamed
   --> tests/ui-toml/missing_enforced_import_rename/conf_missing_enforced_import_rename.rs:15:5
    |
 LL |     use std::collections::BTreeMap as OopsWrongRename;
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: try: `use std::collections::BTreeMap as Map`
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: try
+   |
+LL |     use std::collections::BTreeMap as Map;
+   |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 error: aborting due to 6 previous errors
 

src/tools/clippy/tests/ui-toml/nonstandard_macro_braces/conf_nonstandard_macro_braces.stderr

@@ -2,57 +2,95 @@ error: use of irregular braces for `vec!` macro
   --> tests/ui-toml/nonstandard_macro_braces/conf_nonstandard_macro_braces.rs:43:13
    |
 LL |     let _ = vec! {1, 2, 3};
-   |             ^^^^^^^^^^^^^^ help: consider writing: `vec![1, 2, 3]`
+   |             ^^^^^^^^^^^^^^
    |
    = note: `-D clippy::nonstandard-macro-braces` implied by `-D warnings`
    = help: to override `-D warnings` add `#[allow(clippy::nonstandard_macro_braces)]`
+help: consider writing
+   |
+LL |     let _ = vec![1, 2, 3];
+   |             ~~~~~~~~~~~~~
 
 error: use of irregular braces for `format!` macro
   --> tests/ui-toml/nonstandard_macro_braces/conf_nonstandard_macro_braces.rs:44:13
    |
 LL |     let _ = format!["ugh {} stop being such a good compiler", "hello"];
-   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider writing: `format!("ugh {} stop being such a good compiler", "hello")`
+   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: consider writing
+   |
+LL |     let _ = format!("ugh {} stop being such a good compiler", "hello");
+   |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 error: use of irregular braces for `matches!` macro
   --> tests/ui-toml/nonstandard_macro_braces/conf_nonstandard_macro_braces.rs:45:13
    |
 LL |     let _ = matches!{{}, ()};
-   |             ^^^^^^^^^^^^^^^^ help: consider writing: `matches!({}, ())`
+   |             ^^^^^^^^^^^^^^^^
+   |
+help: consider writing
+   |
+LL |     let _ = matches!({}, ());
+   |             ~~~~~~~~~~~~~~~~
 
 error: use of irregular braces for `quote!` macro
   --> tests/ui-toml/nonstandard_macro_braces/conf_nonstandard_macro_braces.rs:46:13
    |
 LL |     let _ = quote!(let x = 1;);
-   |             ^^^^^^^^^^^^^^^^^^ help: consider writing: `quote!{let x = 1;}`
+   |             ^^^^^^^^^^^^^^^^^^
+   |
+help: consider writing
+   |
+LL |     let _ = quote!{let x = 1;};
+   |             ~~~~~~~~~~~~~~~~~~
 
 error: use of irregular braces for `quote::quote!` macro
   --> tests/ui-toml/nonstandard_macro_braces/conf_nonstandard_macro_braces.rs:47:13
    |
 LL |     let _ = quote::quote!(match match match);
-   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider writing: `quote::quote!{match match match}`
+   |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: consider writing
+   |
+LL |     let _ = quote::quote!{match match match};
+   |             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 error: use of irregular braces for `vec!` macro
   --> tests/ui-toml/nonstandard_macro_braces/conf_nonstandard_macro_braces.rs:18:9
    |
 LL |         vec!{0, 0, 0}
-   |         ^^^^^^^^^^^^^ help: consider writing: `vec![0, 0, 0]`
+   |         ^^^^^^^^^^^^^
 ...
 LL |     let _ = test!(); // trigger when macro def is inside our own crate
    |             ------- in this macro invocation
    |
    = note: this error originates in the macro `test` (in Nightly builds, run with -Z macro-backtrace for more info)
+help: consider writing
+   |
+LL |         vec![0, 0, 0]
+   |
 
 error: use of irregular braces for `type_pos!` macro
   --> tests/ui-toml/nonstandard_macro_braces/conf_nonstandard_macro_braces.rs:56:12
    |
 LL |     let _: type_pos!(usize) = vec![];
-   |            ^^^^^^^^^^^^^^^^ help: consider writing: `type_pos![usize]`
+   |            ^^^^^^^^^^^^^^^^
+   |
+help: consider writing
+   |
+LL |     let _: type_pos![usize] = vec![];
+   |            ~~~~~~~~~~~~~~~~
 
 error: use of irregular braces for `eprint!` macro
   --> tests/ui-toml/nonstandard_macro_braces/conf_nonstandard_macro_braces.rs:58:5
    |
 LL |     eprint!("test if user config overrides defaults");
-   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: consider writing: `eprint!["test if user config overrides defaults"]`
+   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: consider writing
+   |
+LL |     eprint!["test if user config overrides defaults"];
+   |     ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 error: aborting due to 8 previous errors
 

src/tools/clippy/tests/ui-toml/toml_trivially_copy/test.stderr

@@ -2,16 +2,25 @@ error: this argument (N byte) is passed by reference, but would be more efficien
   --> tests/ui-toml/toml_trivially_copy/test.rs:15:11
    |
 LL | fn bad(x: &u16, y: &Foo) {}
-   |           ^^^^ help: consider passing by value instead: `u16`
+   |           ^^^^
    |
    = note: `-D clippy::trivially-copy-pass-by-ref` implied by `-D warnings`
    = help: to override `-D warnings` add `#[allow(clippy::trivially_copy_pass_by_ref)]`
+help: consider passing by value instead
+   |
+LL | fn bad(x: u16, y: &Foo) {}
+   |           ~~~
 
 error: this argument (N byte) is passed by reference, but would be more efficient if passed by value (limit: N byte)
   --> tests/ui-toml/toml_trivially_copy/test.rs:15:20
    |
 LL | fn bad(x: &u16, y: &Foo) {}
-   |                    ^^^^ help: consider passing by value instead: `Foo`
+   |                    ^^^^
+   |
+help: consider passing by value instead
+   |
+LL | fn bad(x: &u16, y: Foo) {}
+   |                    ~~~
 
 error: aborting due to 2 previous errors
 

src/tools/clippy/tests/ui-toml/toml_unknown_key/conf_unknown_key.stderr

@@ -248,7 +248,12 @@ error: error reading Clippy's configuration file: unknown field `allow_mixed_uni
   --> $DIR/tests/ui-toml/toml_unknown_key/clippy.toml:7:1
    |
 LL | allow_mixed_uninlined_format_args = true
-   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: perhaps you meant: `allow-mixed-uninlined-format-args`
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+help: perhaps you meant
+   |
+LL | allow-mixed-uninlined-format-args = true
+   | ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
 error: aborting due to 3 previous errors