[inspector] fixed crash on attempt to access empty scope_info on break

test/inspector/protocol-test.js

Index: test/inspector/protocol-test.js
diff --git a/test/inspector/protocol-test.js b/test/inspector/protocol-test.js
index 2259e15145ca6c8e351863e895b9068f80559f12..c47b6b1b21bf8e1a48766ef87249a94b1b3b2740 100644
--- a/test/inspector/protocol-test.js
+++ b/test/inspector/protocol-test.js
@@ -134,6 +134,7 @@ InspectorTest.logCallFrameSourceLocation = function(callFrame)
     var line = lines[location.lineNumber];
     line = line.slice(0, location.columnNumber) + '#' + (line.slice(location.columnNumber) || '');
     lines[location.lineNumber] = line;
+    lines = lines.filter(line => line.indexOf('//# sourceURL=') === -1);
     InspectorTest.log(lines.slice(Math.max(location.lineNumber - 1, 0), location.lineNumber + 2).join('\n'));
     InspectorTest.log('');
   }