Pre-intern "0", "1", ..., "9", and use where appropriate.

2 files changed, 3 insertions, 3 deletions

diff --git a/src/libsyntax/parse/lexer/mod.rs b/src/libsyntax/parse/lexer/mod.rs
index deb76d6d70a..a06a84f162a 100644
--- a/src/libsyntax/parse/lexer/mod.rs
+++ b/src/libsyntax/parse/lexer/mod.rs
@@ -1,7 +1,7 @@
 use crate::ast::{self, Ident};
 use crate::parse::ParseSess;
 use crate::parse::token::{self, Token};
-use crate::symbol::Symbol;
+use crate::symbol::{sym, Symbol};
 use crate::parse::unescape;
 use crate::parse::unescape_error_reporting::{emit_unescape_error, push_escaped_char};
 
@@ -754,7 +754,7 @@ impl<'a> StringReader<'a> {
                 }
                 _ => {
                     // just a 0
-                    return (token::Integer, self.name_from(start_bpos));
+                    return (token::Integer, sym::integer(0));
                 }
             }
         } else if c.is_digit(10) {
diff --git a/src/libsyntax/parse/literal.rs b/src/libsyntax/parse/literal.rs
index 0305b1f59b9..80bb89ef81a 100644
--- a/src/libsyntax/parse/literal.rs
+++ b/src/libsyntax/parse/literal.rs
@@ -197,7 +197,7 @@ impl LitKind {
                     ast::LitIntType::Signed(ty) => Some(Symbol::intern(ty.ty_to_string())),
                     ast::LitIntType::Unsuffixed => None,
                 };
-                (token::Integer, Symbol::intern(&n.to_string()), suffix)
+                (token::Integer, sym::integer(n), suffix)
             }
             LitKind::Float(symbol, ty) => {
                 (token::Float, symbol, Some(Symbol::intern(ty.ty_to_string())))