Replace trivial bool matches with the matches! macro

Author: LingMan

compiler/rustc_ast_pretty/src/pp.rs

@@ -170,17 +170,11 @@ pub enum Token {
 
 impl Token {
     crate fn is_eof(&self) -> bool {
-        match *self {
-            Token::Eof => true,
-            _ => false,
-        }
+        matches!(self, Token::Eof)
     }
 
     pub fn is_hardbreak_tok(&self) -> bool {
-        match *self {
-            Token::Break(BreakToken { offset: 0, blank_space: bs }) if bs == SIZE_INFINITY => true,
-            _ => false,
-        }
+        matches!(self, Token::Break(BreakToken { offset: 0, blank_space: SIZE_INFINITY }))
     }
 }