Rename Token::is_path.

This makes it consistent with `is_whole_expr` and `is_whole_block`.

compiler/rustc_ast/src/token.rs

@@ -664,7 +664,7 @@ pub fn is_ident_named(&self, name: Symbol) -> bool {
     }
 
     /// Returns `true` if the token is an interpolated path.
-    fn is_path(&self) -> bool {
+    fn is_whole_path(&self) -> bool {
         if let Interpolated(nt) = &self.kind
             && let NtPath(..) = &nt.0
         {
@@ -710,7 +710,7 @@ pub fn is_qpath_start(&self) -> bool {
     pub fn is_path_start(&self) -> bool {
         self == &ModSep
             || self.is_qpath_start()
-            || self.is_path()
+            || self.is_whole_path()
             || self.is_path_segment_keyword()
             || self.is_ident() && !self.is_reserved_ident()
     }