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-rw-r--r--src/test/ui-fulldeps/session-diagnostic/diagnostic-derive.rs37
-rw-r--r--src/test/ui-fulldeps/session-diagnostic/diagnostic-derive.stderr46
-rw-r--r--src/test/ui-fulldeps/session-diagnostic/subdiagnostic-derive.rs144
-rw-r--r--src/test/ui-fulldeps/session-diagnostic/subdiagnostic-derive.stderr80
4 files changed, 229 insertions, 78 deletions
diff --git a/src/test/ui-fulldeps/session-diagnostic/diagnostic-derive.rs b/src/test/ui-fulldeps/session-diagnostic/diagnostic-derive.rs
index ca77e483d6f..411eb3fba48 100644
--- a/src/test/ui-fulldeps/session-diagnostic/diagnostic-derive.rs
+++ b/src/test/ui-fulldeps/session-diagnostic/diagnostic-derive.rs
@@ -40,9 +40,9 @@ struct HelloWarn {}
 //~^ ERROR unsupported type attribute for diagnostic derive enum
 enum DiagnosticOnEnum {
     Foo,
-//~^ ERROR diagnostic slug not specified
+    //~^ ERROR diagnostic slug not specified
     Bar,
-//~^ ERROR diagnostic slug not specified
+    //~^ ERROR diagnostic slug not specified
 }
 
 #[derive(Diagnostic)]
@@ -211,9 +211,10 @@ struct LabelOnNonSpan {
 #[diag(compiletest_example, code = "E0123")]
 struct Suggest {
     #[suggestion(suggestion, code = "This is the suggested code")]
-    #[suggestion_short(suggestion, code = "This is the suggested code")]
-    #[suggestion_hidden(suggestion, code = "This is the suggested code")]
-    #[suggestion_verbose(suggestion, code = "This is the suggested code")]
+    #[suggestion(suggestion, code = "This is the suggested code", style = "normal")]
+    #[suggestion(suggestion, code = "This is the suggested code", style = "short")]
+    #[suggestion(suggestion, code = "This is the suggested code", style = "hidden")]
+    #[suggestion(suggestion, code = "This is the suggested code", style = "verbose")]
     suggestion: (Span, Applicability),
 }
 
@@ -536,8 +537,7 @@ struct LabelWithTrailingList {
 
 #[derive(LintDiagnostic)]
 #[diag(compiletest_example)]
-struct LintsGood {
-}
+struct LintsGood {}
 
 #[derive(LintDiagnostic)]
 #[diag(compiletest_example)]
@@ -683,7 +683,7 @@ struct RawIdentDiagnosticArg {
 #[diag(compiletest_example)]
 struct SubdiagnosticBad {
     #[subdiagnostic(bad)]
-//~^ ERROR `#[subdiagnostic(bad)]` is not a valid attribute
+    //~^ ERROR `#[subdiagnostic(bad)]` is not a valid attribute
     note: Note,
 }
 
@@ -691,7 +691,7 @@ struct SubdiagnosticBad {
 #[diag(compiletest_example)]
 struct SubdiagnosticBadStr {
     #[subdiagnostic = "bad"]
-//~^ ERROR `#[subdiagnostic = ...]` is not a valid attribute
+    //~^ ERROR `#[subdiagnostic = ...]` is not a valid attribute
     note: Note,
 }
 
@@ -699,7 +699,7 @@ struct SubdiagnosticBadStr {
 #[diag(compiletest_example)]
 struct SubdiagnosticBadTwice {
     #[subdiagnostic(bad, bad)]
-//~^ ERROR `#[subdiagnostic(...)]` is not a valid attribute
+    //~^ ERROR `#[subdiagnostic(...)]` is not a valid attribute
     note: Note,
 }
 
@@ -707,7 +707,7 @@ struct SubdiagnosticBadTwice {
 #[diag(compiletest_example)]
 struct SubdiagnosticBadLitStr {
     #[subdiagnostic("bad")]
-//~^ ERROR `#[subdiagnostic("...")]` is not a valid attribute
+    //~^ ERROR `#[subdiagnostic("...")]` is not a valid attribute
     note: Note,
 }
 
@@ -715,7 +715,7 @@ struct SubdiagnosticBadLitStr {
 #[diag(compiletest_example)]
 struct SubdiagnosticEagerLint {
     #[subdiagnostic(eager)]
-//~^ ERROR `#[subdiagnostic(...)]` is not a valid attribute
+    //~^ ERROR `#[subdiagnostic(...)]` is not a valid attribute
     note: Note,
 }
 
@@ -731,11 +731,7 @@ struct SubdiagnosticEagerCorrect {
 // after the `span_suggestion` call - which breaks eager translation.
 
 #[derive(Subdiagnostic)]
-#[suggestion_short(
-    use_instead,
-    applicability = "machine-applicable",
-    code = "{correct}"
-)]
+#[suggestion(use_instead, applicability = "machine-applicable", code = "{correct}")]
 pub(crate) struct SubdiagnosticWithSuggestion {
     #[primary_span]
     span: Span,
@@ -796,3 +792,10 @@ struct SuggestionsInvalidLiteral {
     //~^ ERROR `code = "..."`/`code(...)` must contain only string literals
     sub: Span,
 }
+
+#[derive(Diagnostic)]
+#[diag(compiletest_example)]
+struct SuggestionStyleGood {
+    #[suggestion(code = "", style = "hidden")]
+    sub: Span,
+}
diff --git a/src/test/ui-fulldeps/session-diagnostic/diagnostic-derive.stderr b/src/test/ui-fulldeps/session-diagnostic/diagnostic-derive.stderr
index 859c272b6ba..b4c211db47c 100644
--- a/src/test/ui-fulldeps/session-diagnostic/diagnostic-derive.stderr
+++ b/src/test/ui-fulldeps/session-diagnostic/diagnostic-derive.stderr
@@ -261,41 +261,41 @@ LL |     #[label(label)]
    |     ^^^^^^^^^^^^^^^
 
 error: suggestion without `code = "..."`
-  --> $DIR/diagnostic-derive.rs:223:5
+  --> $DIR/diagnostic-derive.rs:224:5
    |
 LL |     #[suggestion(suggestion)]
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: `#[suggestion(nonsense = ...)]` is not a valid attribute
-  --> $DIR/diagnostic-derive.rs:231:18
+  --> $DIR/diagnostic-derive.rs:232:18
    |
 LL |     #[suggestion(nonsense = "bar")]
    |                  ^^^^^^^^^^^^^^^^
    |
-   = help: only `code` and `applicability` are valid nested attributes
+   = help: only `style`, `code` and `applicability` are valid nested attributes
 
 error: suggestion without `code = "..."`
-  --> $DIR/diagnostic-derive.rs:231:5
+  --> $DIR/diagnostic-derive.rs:232:5
    |
 LL |     #[suggestion(nonsense = "bar")]
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: `#[suggestion(msg = ...)]` is not a valid attribute
-  --> $DIR/diagnostic-derive.rs:240:18
+  --> $DIR/diagnostic-derive.rs:241:18
    |
 LL |     #[suggestion(msg = "bar")]
    |                  ^^^^^^^^^^^
    |
-   = help: only `code` and `applicability` are valid nested attributes
+   = help: only `style`, `code` and `applicability` are valid nested attributes
 
 error: suggestion without `code = "..."`
-  --> $DIR/diagnostic-derive.rs:240:5
+  --> $DIR/diagnostic-derive.rs:241:5
    |
 LL |     #[suggestion(msg = "bar")]
    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: wrong field type for suggestion
-  --> $DIR/diagnostic-derive.rs:263:5
+  --> $DIR/diagnostic-derive.rs:264:5
    |
 LL | /     #[suggestion(suggestion, code = "This is suggested code")]
 LL | |
@@ -305,55 +305,55 @@ LL | |     suggestion: Applicability,
    = help: `#[suggestion(...)]` should be applied to fields of type `Span` or `(Span, Applicability)`
 
 error: specified multiple times
-  --> $DIR/diagnostic-derive.rs:279:24
+  --> $DIR/diagnostic-derive.rs:280:24
    |
 LL |     suggestion: (Span, Span, Applicability),
    |                        ^^^^
    |
 note: previously specified here
-  --> $DIR/diagnostic-derive.rs:279:18
+  --> $DIR/diagnostic-derive.rs:280:18
    |
 LL |     suggestion: (Span, Span, Applicability),
    |                  ^^^^
 
 error: specified multiple times
-  --> $DIR/diagnostic-derive.rs:287:33
+  --> $DIR/diagnostic-derive.rs:288:33
    |
 LL |     suggestion: (Applicability, Applicability, Span),
    |                                 ^^^^^^^^^^^^^
    |
 note: previously specified here
-  --> $DIR/diagnostic-derive.rs:287:18
+  --> $DIR/diagnostic-derive.rs:288:18
    |
 LL |     suggestion: (Applicability, Applicability, Span),
    |                  ^^^^^^^^^^^^^
 
 error: `#[label = ...]` is not a valid attribute
-  --> $DIR/diagnostic-derive.rs:294:5
+  --> $DIR/diagnostic-derive.rs:295:5
    |
 LL |     #[label = "bar"]
    |     ^^^^^^^^^^^^^^^^
 
 error: specified multiple times
-  --> $DIR/diagnostic-derive.rs:445:44
+  --> $DIR/diagnostic-derive.rs:446:44
    |
 LL |     #[suggestion(suggestion, code = "...", applicability = "maybe-incorrect")]
    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
    |
 note: previously specified here
-  --> $DIR/diagnostic-derive.rs:447:24
+  --> $DIR/diagnostic-derive.rs:448:24
    |
 LL |     suggestion: (Span, Applicability),
    |                        ^^^^^^^^^^^^^
 
 error: invalid applicability
-  --> $DIR/diagnostic-derive.rs:453:44
+  --> $DIR/diagnostic-derive.rs:454:44
    |
 LL |     #[suggestion(suggestion, code = "...", applicability = "batman")]
    |                                            ^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: `#[label(foo)]` is not a valid attribute
-  --> $DIR/diagnostic-derive.rs:516:20
+  --> $DIR/diagnostic-derive.rs:517:20
    |
 LL |     #[label(label, foo)]
    |                    ^^^
@@ -361,13 +361,13 @@ LL |     #[label(label, foo)]
    = help: a diagnostic slug must be the first argument to the attribute
 
 error: `#[label(foo = ...)]` is not a valid attribute
-  --> $DIR/diagnostic-derive.rs:524:20
+  --> $DIR/diagnostic-derive.rs:525:20
    |
 LL |     #[label(label, foo = "...")]
    |                    ^^^^^^^^^^^
 
 error: `#[label(foo(...))]` is not a valid attribute
-  --> $DIR/diagnostic-derive.rs:532:20
+  --> $DIR/diagnostic-derive.rs:533:20
    |
 LL |     #[label(label, foo("..."))]
    |                    ^^^^^^^^^^
@@ -574,19 +574,19 @@ LL |     #[subdiagnostic(eager)]
    = help: eager subdiagnostics are not supported on lints
 
 error: expected at least one string literal for `code(...)`
-  --> $DIR/diagnostic-derive.rs:779:18
+  --> $DIR/diagnostic-derive.rs:775:18
    |
 LL |     #[suggestion(code())]
    |                  ^^^^^^
 
 error: `code(...)` must contain only string literals
-  --> $DIR/diagnostic-derive.rs:787:23
+  --> $DIR/diagnostic-derive.rs:783:23
    |
 LL |     #[suggestion(code(foo))]
    |                       ^^^
 
 error: `code = "..."`/`code(...)` must contain only string literals
-  --> $DIR/diagnostic-derive.rs:795:18
+  --> $DIR/diagnostic-derive.rs:791:18
    |
 LL |     #[suggestion(code = 3)]
    |                  ^^^^^^^^
@@ -652,7 +652,7 @@ LL | #[diag(nonsense, code = "E0123")]
    |        ^^^^^^^^ not found in `rustc_errors::fluent`
 
 error[E0277]: the trait bound `Hello: IntoDiagnosticArg` is not satisfied
-  --> $DIR/diagnostic-derive.rs:338:10
+  --> $DIR/diagnostic-derive.rs:339:10
    |
 LL | #[derive(Diagnostic)]
    |          ^^^^^^^^^^ the trait `IntoDiagnosticArg` is not implemented for `Hello`
diff --git a/src/test/ui-fulldeps/session-diagnostic/subdiagnostic-derive.rs b/src/test/ui-fulldeps/session-diagnostic/subdiagnostic-derive.rs
index efec85eb52c..078ec3baac9 100644
--- a/src/test/ui-fulldeps/session-diagnostic/subdiagnostic-derive.rs
+++ b/src/test/ui-fulldeps/session-diagnostic/subdiagnostic-derive.rs
@@ -11,13 +11,13 @@
 #![crate_type = "lib"]
 
 extern crate rustc_errors;
+extern crate rustc_macros;
 extern crate rustc_session;
 extern crate rustc_span;
-extern crate rustc_macros;
 
 use rustc_errors::Applicability;
-use rustc_span::Span;
 use rustc_macros::Subdiagnostic;
+use rustc_span::Span;
 
 #[derive(Subdiagnostic)]
 #[label(parser_add_paren)]
@@ -40,7 +40,7 @@ enum B {
         #[primary_span]
         span: Span,
         var: String,
-    }
+    },
 }
 
 #[derive(Subdiagnostic)]
@@ -165,7 +165,7 @@ enum P {
         #[primary_span]
         span: Span,
         var: String,
-    }
+    },
 }
 
 #[derive(Subdiagnostic)]
@@ -177,7 +177,7 @@ enum Q {
         #[primary_span]
         span: Span,
         var: String,
-    }
+    },
 }
 
 #[derive(Subdiagnostic)]
@@ -189,7 +189,7 @@ enum R {
         #[primary_span]
         span: Span,
         var: String,
-    }
+    },
 }
 
 #[derive(Subdiagnostic)]
@@ -201,7 +201,7 @@ enum S {
         #[primary_span]
         span: Span,
         var: String,
-    }
+    },
 }
 
 #[derive(Subdiagnostic)]
@@ -213,7 +213,7 @@ enum T {
         #[primary_span]
         span: Span,
         var: String,
-    }
+    },
 }
 
 #[derive(Subdiagnostic)]
@@ -225,7 +225,7 @@ enum U {
         #[primary_span]
         span: Span,
         var: String,
-    }
+    },
 }
 
 #[derive(Subdiagnostic)]
@@ -240,7 +240,7 @@ enum V {
         #[primary_span]
         span: Span,
         var: String,
-    }
+    },
 }
 
 #[derive(Subdiagnostic)]
@@ -301,14 +301,14 @@ struct AB {
     #[primary_span]
     span: Span,
     #[skip_arg]
-    z: Z
+    z: Z,
 }
 
 #[derive(Subdiagnostic)]
 union AC {
-//~^ ERROR unexpected unsupported untagged union
+    //~^ ERROR unexpected unsupported untagged union
     span: u32,
-    b: u64
+    b: u64,
 }
 
 #[derive(Subdiagnostic)]
@@ -372,7 +372,7 @@ enum AI {
         #[applicability]
         applicability: Applicability,
         var: String,
-    }
+    },
 }
 
 #[derive(Subdiagnostic)]
@@ -427,7 +427,7 @@ struct AN {
 }
 
 #[derive(Subdiagnostic)]
-#[suggestion(parser_add_paren, code ="...", applicability = "foo")]
+#[suggestion(parser_add_paren, code = "...", applicability = "foo")]
 //~^ ERROR invalid applicability
 struct AO {
     #[primary_span]
@@ -437,7 +437,7 @@ struct AO {
 #[derive(Subdiagnostic)]
 #[help(parser_add_paren)]
 struct AP {
-    var: String
+    var: String,
 }
 
 #[derive(Subdiagnostic)]
@@ -452,7 +452,7 @@ struct AR {
 }
 
 #[derive(Subdiagnostic)]
-#[suggestion(parser_add_paren, code ="...", applicability = "machine-applicable")]
+#[suggestion(parser_add_paren, code = "...", applicability = "machine-applicable")]
 struct AS {
     #[primary_span]
     span: Span,
@@ -467,11 +467,11 @@ enum AT {
         #[primary_span]
         span: Span,
         var: String,
-    }
+    },
 }
 
 #[derive(Subdiagnostic)]
-#[suggestion(parser_add_paren, code ="{var}", applicability = "machine-applicable")]
+#[suggestion(parser_add_paren, code = "{var}", applicability = "machine-applicable")]
 struct AU {
     #[primary_span]
     span: Span,
@@ -479,7 +479,7 @@ struct AU {
 }
 
 #[derive(Subdiagnostic)]
-#[suggestion(parser_add_paren, code ="{var}", applicability = "machine-applicable")]
+#[suggestion(parser_add_paren, code = "{var}", applicability = "machine-applicable")]
 //~^ ERROR `var` doesn't refer to a field on this type
 struct AV {
     #[primary_span]
@@ -488,22 +488,22 @@ struct AV {
 
 #[derive(Subdiagnostic)]
 enum AW {
-    #[suggestion(parser_add_paren, code ="{var}", applicability = "machine-applicable")]
+    #[suggestion(parser_add_paren, code = "{var}", applicability = "machine-applicable")]
     A {
         #[primary_span]
         span: Span,
         var: String,
-    }
+    },
 }
 
 #[derive(Subdiagnostic)]
 enum AX {
-    #[suggestion(parser_add_paren, code ="{var}", applicability = "machine-applicable")]
-//~^ ERROR `var` doesn't refer to a field on this type
+    #[suggestion(parser_add_paren, code = "{var}", applicability = "machine-applicable")]
+    //~^ ERROR `var` doesn't refer to a field on this type
     A {
         #[primary_span]
         span: Span,
-    }
+    },
 }
 
 #[derive(Subdiagnostic)]
@@ -659,7 +659,7 @@ enum BL {
         /// ..and the field
         #[primary_span]
         span: Span,
-    }
+    },
 }
 
 #[derive(Subdiagnostic)]
@@ -706,3 +706,95 @@ struct BQ {
     span: Span,
     r#type: String,
 }
+
+#[derive(Subdiagnostic)]
+#[suggestion(parser_add_paren, code = "")]
+struct SuggestionStyleDefault {
+    #[primary_span]
+    sub: Span,
+}
+
+#[derive(Subdiagnostic)]
+#[suggestion(parser_add_paren, code = "", style = "short")]
+struct SuggestionStyleShort {
+    #[primary_span]
+    sub: Span,
+}
+
+#[derive(Subdiagnostic)]
+#[suggestion(parser_add_paren, code = "", style = "hidden")]
+struct SuggestionStyleHidden {
+    #[primary_span]
+    sub: Span,
+}
+
+#[derive(Subdiagnostic)]
+#[suggestion(parser_add_paren, code = "", style = "verbose")]
+struct SuggestionStyleVerbose {
+    #[primary_span]
+    sub: Span,
+}
+
+#[derive(Subdiagnostic)]
+#[suggestion(parser_add_paren, code = "", style = "tool-only")]
+struct SuggestionStyleToolOnly {
+    #[primary_span]
+    sub: Span,
+}
+
+#[derive(Subdiagnostic)]
+#[suggestion(parser_add_paren, code = "", style = "hidden", style = "normal")]
+//~^ ERROR specified multiple times
+//~| NOTE previously specified here
+struct SuggestionStyleTwice {
+    #[primary_span]
+    sub: Span,
+}
+
+#[derive(Subdiagnostic)]
+#[suggestion_hidden(parser_add_paren, code = "")]
+//~^ ERROR #[suggestion_hidden(...)]` is not a valid attribute
+struct SuggestionStyleOldSyntax {
+    #[primary_span]
+    sub: Span,
+}
+
+#[derive(Subdiagnostic)]
+#[suggestion_hidden(parser_add_paren, code = "", style = "normal")]
+//~^ ERROR #[suggestion_hidden(...)]` is not a valid attribute
+struct SuggestionStyleOldAndNewSyntax {
+    #[primary_span]
+    sub: Span,
+}
+
+#[derive(Subdiagnostic)]
+#[suggestion(parser_add_paren, code = "", style = "foo")]
+//~^ ERROR invalid suggestion style
+struct SuggestionStyleInvalid1 {
+    #[primary_span]
+    sub: Span,
+}
+
+#[derive(Subdiagnostic)]
+#[suggestion(parser_add_paren, code = "", style = 42)]
+//~^ ERROR `#[suggestion(style = ...)]` is not a valid attribute
+struct SuggestionStyleInvalid2 {
+    #[primary_span]
+    sub: Span,
+}
+
+#[derive(Subdiagnostic)]
+#[suggestion(parser_add_paren, code = "", style)]
+//~^ ERROR `#[suggestion(style)]` is not a valid attribute
+struct SuggestionStyleInvalid3 {
+    #[primary_span]
+    sub: Span,
+}
+
+#[derive(Subdiagnostic)]
+#[suggestion(parser_add_paren, code = "", style("foo"))]
+//~^ ERROR `#[suggestion(style(...))]` is not a valid attribute
+struct SuggestionStyleInvalid4 {
+    #[primary_span]
+    sub: Span,
+}
diff --git a/src/test/ui-fulldeps/session-diagnostic/subdiagnostic-derive.stderr b/src/test/ui-fulldeps/session-diagnostic/subdiagnostic-derive.stderr
index a85a8711eac..8e06c43e6d0 100644
--- a/src/test/ui-fulldeps/session-diagnostic/subdiagnostic-derive.stderr
+++ b/src/test/ui-fulldeps/session-diagnostic/subdiagnostic-derive.stderr
@@ -186,7 +186,7 @@ error: unexpected unsupported untagged union
 LL | / union AC {
 LL | |
 LL | |     span: u32,
-LL | |     b: u64
+LL | |     b: u64,
 LL | | }
    | |_^
 
@@ -253,10 +253,10 @@ LL | #[suggestion(parser_add_paren)]
    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
 error: invalid applicability
-  --> $DIR/subdiagnostic-derive.rs:430:45
+  --> $DIR/subdiagnostic-derive.rs:430:46
    |
-LL | #[suggestion(parser_add_paren, code ="...", applicability = "foo")]
-   |                                             ^^^^^^^^^^^^^^^^^^^^^
+LL | #[suggestion(parser_add_paren, code = "...", applicability = "foo")]
+   |                                              ^^^^^^^^^^^^^^^^^^^^^
 
 error: suggestion without `#[primary_span]` field
   --> $DIR/subdiagnostic-derive.rs:448:1
@@ -275,16 +275,16 @@ LL | #[label]
    | ^^^^^^^^
 
 error: `var` doesn't refer to a field on this type
-  --> $DIR/subdiagnostic-derive.rs:482:38
+  --> $DIR/subdiagnostic-derive.rs:482:39
    |
-LL | #[suggestion(parser_add_paren, code ="{var}", applicability = "machine-applicable")]
-   |                                      ^^^^^^^
+LL | #[suggestion(parser_add_paren, code = "{var}", applicability = "machine-applicable")]
+   |                                       ^^^^^^^
 
 error: `var` doesn't refer to a field on this type
-  --> $DIR/subdiagnostic-derive.rs:501:42
+  --> $DIR/subdiagnostic-derive.rs:501:43
    |
-LL |     #[suggestion(parser_add_paren, code ="{var}", applicability = "machine-applicable")]
-   |                                          ^^^^^^^
+LL |     #[suggestion(parser_add_paren, code = "{var}", applicability = "machine-applicable")]
+   |                                           ^^^^^^^
 
 error: `#[suggestion_part]` is not a valid attribute
   --> $DIR/subdiagnostic-derive.rs:524:5
@@ -320,7 +320,7 @@ error: `#[multipart_suggestion(code = ...)]` is not a valid attribute
 LL | #[multipart_suggestion(parser_add_paren, code = "...", applicability = "machine-applicable")]
    |                                          ^^^^^^^^^^^^
    |
-   = help: only `applicability` is a valid nested attributes
+   = help: only `style` and `applicability` are valid nested attributes
 
 error: multipart suggestion without any `#[suggestion_part(...)]` fields
   --> $DIR/subdiagnostic-derive.rs:536:1
@@ -445,6 +445,62 @@ error: `code = "..."`/`code(...)` must contain only string literals
 LL |     #[suggestion_part(code = 3)]
    |                       ^^^^^^^^
 
+error: specified multiple times
+  --> $DIR/subdiagnostic-derive.rs:746:61
+   |
+LL | #[suggestion(parser_add_paren, code = "", style = "hidden", style = "normal")]
+   |                                                             ^^^^^^^^^^^^^^^^
+   |
+note: previously specified here
+  --> $DIR/subdiagnostic-derive.rs:746:43
+   |
+LL | #[suggestion(parser_add_paren, code = "", style = "hidden", style = "normal")]
+   |                                           ^^^^^^^^^^^^^^^^
+
+error: `#[suggestion_hidden(...)]` is not a valid attribute
+  --> $DIR/subdiagnostic-derive.rs:755:1
+   |
+LL | #[suggestion_hidden(parser_add_paren, code = "")]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = help: Use `#[suggestion(..., style = "hidden")]` instead
+
+error: `#[suggestion_hidden(...)]` is not a valid attribute
+  --> $DIR/subdiagnostic-derive.rs:763:1
+   |
+LL | #[suggestion_hidden(parser_add_paren, code = "", style = "normal")]
+   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+   |
+   = help: Use `#[suggestion(..., style = "hidden")]` instead
+
+error: invalid suggestion style
+  --> $DIR/subdiagnostic-derive.rs:771:51
+   |
+LL | #[suggestion(parser_add_paren, code = "", style = "foo")]
+   |                                                   ^^^^^
+   |
+   = help: valid styles are `normal`, `short`, `hidden`, `verbose` and `tool-only`
+
+error: `#[suggestion(style = ...)]` is not a valid attribute
+  --> $DIR/subdiagnostic-derive.rs:779:43
+   |
+LL | #[suggestion(parser_add_paren, code = "", style = 42)]
+   |                                           ^^^^^^^^^^
+
+error: `#[suggestion(style)]` is not a valid attribute
+  --> $DIR/subdiagnostic-derive.rs:787:43
+   |
+LL | #[suggestion(parser_add_paren, code = "", style)]
+   |                                           ^^^^^
+   |
+   = help: a diagnostic slug must be the first argument to the attribute
+
+error: `#[suggestion(style(...))]` is not a valid attribute
+  --> $DIR/subdiagnostic-derive.rs:795:43
+   |
+LL | #[suggestion(parser_add_paren, code = "", style("foo"))]
+   |                                           ^^^^^^^^^^^^
+
 error: cannot find attribute `foo` in this scope
   --> $DIR/subdiagnostic-derive.rs:63:3
    |
@@ -505,6 +561,6 @@ error[E0425]: cannot find value `slug` in module `rustc_errors::fluent`
 LL | #[label(slug)]
    |         ^^^^ not found in `rustc_errors::fluent`
 
-error: aborting due to 72 previous errors
+error: aborting due to 79 previous errors
 
 For more information about this error, try `rustc --explain E0425`.