merge PrecedenceInfo into TokenType and update all refs

pkg/front_end/test/scanner_replacement_test.dart

Index: pkg/front_end/test/scanner_replacement_test.dart
diff --git a/pkg/front_end/test/scanner_replacement_test.dart b/pkg/front_end/test/scanner_replacement_test.dart
index a658d6d79026bccd5e9dc390926f7fe9edae46a8..f126bd5a60bdcf3dba33c13851793c168f382c28 100644
--- a/pkg/front_end/test/scanner_replacement_test.dart
+++ b/pkg/front_end/test/scanner_replacement_test.dart
@@ -4,8 +4,6 @@
 
 import 'dart:convert' show UTF8;
 
-import 'package:front_end/src/fasta/scanner/precedence.dart'
-    show BAD_INPUT_INFO, EOF_INFO;
 import 'package:front_end/src/fasta/scanner/recover.dart'
     show defaultRecoveryStrategy;
 import 'package:front_end/src/fasta/scanner.dart' as fasta;
@@ -335,7 +333,7 @@ class ScannerTest_Replacement extends ScannerTest {
     var token = firstToken;
     // The default recovery strategy used by scanString
     // places all error tokens at the head of the stream.
-    while (token.info == BAD_INPUT_INFO) {
+    while (token.info == analyzer.TokenType.BAD_INPUT) {
       translateErrorToken(token,
           (ScannerErrorCode errorCode, int offset, List<Object> arguments) {
         listener.errors.add(new TestError(offset, errorCode, arguments));
@@ -343,7 +341,7 @@ class ScannerTest_Replacement extends ScannerTest {
       token = token.next;
     }
     if (!token.previousToken.isEof) {
-      var head = new fasta.SymbolToken(EOF_INFO, -1);
+      var head = new fasta.SymbolToken(analyzer.TokenType.EOF, -1);
       token.previous = head;
       head.next = token;
     }