Switch AsmLexer::Lex to returning a reference to the current token.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77328 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvm-mc/llvm-mc.cpp b/tools/llvm-mc/llvm-mc.cpp
index 63cb70d..a64c8a6 100644
--- a/tools/llvm-mc/llvm-mc.cpp
+++ b/tools/llvm-mc/llvm-mc.cpp
@@ -83,9 +83,8 @@
   
   bool Error = false;
   
-  AsmToken::TokenKind Tok = Lexer.Lex();
-  while (Tok != AsmToken::Eof) {
-    switch (Tok) {
+  while (Lexer.Lex().isNot(AsmToken::Eof)) {
+    switch (Lexer.getKind()) {
     default:
       Lexer.PrintMessage(Lexer.getLoc(), "unknown token", "warning");
       Error = true;
@@ -136,8 +135,6 @@
     case AsmToken::Star:           outs() << "Star\n"; break;
     case AsmToken::Tilde:          outs() << "Tilde\n"; break;
     }
-    
-    Tok = Lexer.Lex();
   }
   
   return Error;