Uppercase numeric constants

The following are renamed:

* `min_value` => `MIN`
* `max_value` => `MAX`
* `bits` => `BITS`
* `bytes` => `BYTES`

Fixes #10010.

src/libsyntax/ast_util.rs

@@ -340,8 +340,8 @@ pub struct IdRange {
 impl IdRange {
     pub fn max() -> IdRange {
         IdRange {
-            min: u32::max_value,
-            max: u32::min_value,
+            min: u32::MAX,
+            max: u32::MIN,
         }
     }