Remove support for + prefix in number literals

runtime/vm/object.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/object.h"
 
 #include "include/dart_api.h"
 #include "platform/assert.h"
 #include "vm/assembler.h"
 #include "vm/cpu.h"
@@ skipping 4636 matching lines @@
 }
 
 
 bool Function::CheckSourceFingerprint(int32_t fp) const {
   if (SourceFingerprint() != fp) {
     const bool recalculatingFingerprints = false;
     if (recalculatingFingerprints) {
       // This output can be copied into a file, then used with sed
       // to replace the old values.
       // sed -i .bak -f /tmp/newkeys runtime/vm/intrinsifier.h
+      // sed -i .bak -f /tmp/newkeys runtime/vm/intermediate_language.h
+      // sed -i .bak -f /tmp/newkeys runtime/vm/flow_graph_builder.h
       OS::Print("s/%d/%d/\n", fp, SourceFingerprint());
     } else {
       OS::Print("FP mismatch while recognizing method %s:"
                 " expecting %d found %d\n",
                 ToFullyQualifiedCString(),
                 fp,
                 SourceFingerprint());
       return false;
     }
   }
@@ skipping 564 matching lines @@
         } else {
           separator = &Symbols::NewLine();
         }
         break;
       case Token::kSEMICOLON:
         separator = &Symbols::NewLine();
         break;
       case Token::kPERIOD:
       case Token::kLPAREN:
       case Token::kLBRACK:
-      case Token::kTIGHTADD:
       case Token::kINTERPOL_VAR:
       case Token::kINTERPOL_START:
       case Token::kINTERPOL_END:
         break;
       default:
         separator = &Symbols::Blank();
         break;
     }
     // Determine whether the separation text needs to be updated based on the
     // next token.
@@ skipping 8287 matching lines @@
                                     space);
   return reinterpret_cast<RawWeakProperty*>(raw);
 }
 
 
 const char* WeakProperty::ToCString() const {
   return "_WeakProperty";
 }
 
 }  // namespace dart