[inspector] added type of break location into getPossibleBreakpoints output

test/inspector/debugger/get-possible-breakpoints-master.js

 // Copyright 2017 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 InspectorTest.log('Checks Debugger.getPossibleBreakpoints');
 
 var source = utils.read('test/inspector/debugger/resources/break-locations.js');
 InspectorTest.addScript(source);
 
 Protocol.Debugger.onceScriptParsed()
   .then(message => Protocol.Debugger.getPossibleBreakpoints({ start: { lineNumber: 0, columnNumber : 0, scriptId: message.params.scriptId }}))
   .then(dumpAllLocations)
   .then(InspectorTest.completeTest);
 Protocol.Debugger.enable();
 
 function dumpAllLocations(message) {
   if (message.error) {
     InspectorTest.logMessage(message);
     return;
   }
   var lines = source.split('\n');
   var locations = message.result.locations.sort((loc1, loc2) => {
     if (loc2.lineNumber !== loc1.lineNumber) return loc2.lineNumber - loc1.lineNumber;
     return loc2.columnNumber - loc1.columnNumber;
   });
   for (var location of locations) {
     var line = lines[location.lineNumber];
-    line = line.slice(0, location.columnNumber) + '#' + line.slice(location.columnNumber);
+    line = line.slice(0, location.columnNumber) + locationMark(location.type) + line.slice(location.columnNumber);
     lines[location.lineNumber] = line;
   }
   lines = lines.filter(line => line.indexOf('//# sourceURL=') === -1);
   InspectorTest.log(lines.join('\n'));
   return message;
 }
+
+function locationMark(type) {
+  if (type === 'return') return '|R|';
+  if (type === 'call') return '|C|';
+  if (type === 'debuggerStatement') return '|D|';
+  return '|_|';
+}