Don't suggests deprecated congurations

Author: smoelius

clippy_config/src/conf.rs

@@ -940,7 +940,23 @@ impl serde::de::Error for FieldError {
         // set and allows it.
         use fmt::Write;
 
-        let mut expected = expected.to_vec();
+        let metadata = get_configuration_metadata();
+        let deprecated = metadata
+            .iter()
+            .filter_map(|conf| {
+                if conf.deprecation_reason.is_some() {
+                    Some(conf.name.as_str())
+                } else {
+                    None
+                }
+            })
+            .collect::<Vec<_>>();
+
+        let mut expected = expected
+            .iter()
+            .copied()
+            .filter(|name| !deprecated.contains(name))
+            .collect::<Vec<_>>();
         expected.sort_unstable();
 
         let (rows, column_widths) = calculate_dimensions(&expected);

tests/ui-toml/toml_unknown_key/conf_unknown_key.stderr

@@ -29,12 +29,11 @@ error: error reading Clippy's configuration file: unknown field `foobar`, expect
            array-size-threshold
            avoid-breaking-exported-api
            await-holding-invalid-types
-           blacklisted-names
            cargo-ignore-publish
            check-incompatible-msrv-in-tests
+           check-inconsistent-struct-field-initializers
            check-private-items
            cognitive-complexity-threshold
-           cyclomatic-complexity-threshold
            disallowed-macros
            disallowed-methods
            disallowed-names
@@ -49,7 +48,6 @@ error: error reading Clippy's configuration file: unknown field `foobar`, expect
            future-size-threshold
            ignore-interior-mutability
            large-error-threshold
-           lint-inconsistent-struct-field-initializers
            literal-representation-threshold
            matches-for-let-else
            max-fn-params-bools
@@ -121,12 +119,11 @@ error: error reading Clippy's configuration file: unknown field `barfoo`, expect
            array-size-threshold
            avoid-breaking-exported-api
            await-holding-invalid-types
-           blacklisted-names
            cargo-ignore-publish
            check-incompatible-msrv-in-tests
+           check-inconsistent-struct-field-initializers
            check-private-items
            cognitive-complexity-threshold
-           cyclomatic-complexity-threshold
            disallowed-macros
            disallowed-methods
            disallowed-names
@@ -141,7 +138,6 @@ error: error reading Clippy's configuration file: unknown field `barfoo`, expect
            future-size-threshold
            ignore-interior-mutability
            large-error-threshold
-           lint-inconsistent-struct-field-initializers
            literal-representation-threshold
            matches-for-let-else
            max-fn-params-bools
@@ -213,12 +209,11 @@ error: error reading Clippy's configuration file: unknown field `allow_mixed_uni
            array-size-threshold
            avoid-breaking-exported-api
            await-holding-invalid-types
-           blacklisted-names
            cargo-ignore-publish
            check-incompatible-msrv-in-tests
+           check-inconsistent-struct-field-initializers
            check-private-items
            cognitive-complexity-threshold
-           cyclomatic-complexity-threshold
            disallowed-macros
            disallowed-methods
            disallowed-names
@@ -233,7 +228,6 @@ error: error reading Clippy's configuration file: unknown field `allow_mixed_uni
            future-size-threshold
            ignore-interior-mutability
            large-error-threshold
-           lint-inconsistent-struct-field-initializers
            literal-representation-threshold
            matches-for-let-else
            max-fn-params-bools