requested/proposed changes

compiler/rustc_span/src/symbol.rs

@@ -169,10 +169,12 @@ symbols! {
         Option,
         Ord,
         Ordering,
+        OsString,
         Output,
         Param,
         PartialEq,
         PartialOrd,
+        PathBuf,
         Pending,
         Pin,
         Poll,
@@ -198,6 +200,7 @@ symbols! {
         StructuralPartialEq,
         Sync,
         Target,
+        ToOwned,
         Try,
         Ty,
         TyCtxt,
@@ -796,7 +799,6 @@ symbols! {
         options,
         or,
         or_patterns,
-        os_string_type,
         other,
         out,
         overlapping_marker_traits,
@@ -825,7 +827,6 @@ symbols! {
         pat2018,
         pat2021,
         path,
-        path_buf_type,
         pattern_parentheses,
         phantom_data,
         pin,
@@ -1086,7 +1087,6 @@ symbols! {
         slice,
         slice_alloc,
         slice_patterns,
-        slice_to_vec_method,
         slice_u8,
         slice_u8_alloc,
         slicing_syntax,
@@ -1162,7 +1162,6 @@ symbols! {
         then_with,
         thread,
         thread_local,
-        to_owned_trait,
         tool_attributes,
         tool_lints,
         trace_macros,