[DevTools] make breakpoints better

third_party/WebKit/Source/devtools/front_end/common/TextRange.js

 /*
  * Copyright (C) 2013 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 37 matching lines @@
   /**
    * @param {number} line
    * @param {number} column
    * @return {!WebInspector.TextRange}
    */
   static createFromLocation(line, column) {
     return new WebInspector.TextRange(line, column, line, column);
   }
 
   /**
+   * @param {number} line
+   * @return {!WebInspector.TextRange}
+   */
+  static createFromLine(line) {
+    return new WebInspector.TextRange(line, 0, line + 1, 0);
+  }
+
+  /**
    * @param {!Object} serializedTextRange
    * @return {!WebInspector.TextRange}
    */
   static fromObject(serializedTextRange) {
     return new WebInspector.TextRange(
         serializedTextRange.startLine, serializedTextRange.startColumn, serializedTextRange.endLine,
         serializedTextRange.endColumn);
   }
 
   /**
@@ skipping 248 matching lines @@
     return WebInspector.TextRange.comparator(edit1.oldRange, edit2.oldRange);
   }
 
   /**
    * @return {!WebInspector.TextRange}
    */
   newRange() {
     return WebInspector.TextRange.fromEdit(this.oldRange, this.newText);
   }
 };