Clarification comments for parameters, no bug. r=sdwilsh

storage/public/mozIStorageConnection.idl

@@ -107,7 +107,8 @@ interface mozIStorageConnection : nsISupports {
   /**
    * Create a mozIStorageStatement for the given SQL expression.  The
    * expression may use ? to indicate sequential numbered arguments,
-   * or :name and $var to indicate named arguments.
+   * ?1, ?2 etc. to indicate specific numbered arguments or :name and 
+   * $var to indicate named arguments.
    *
    * @param aSQLStatement  The SQL statement to execute
    *

storage/public/mozIStorageStatement.idl

@@ -105,7 +105,8 @@ interface mozIStorageStatement : mozIStorageValueArray {
   void reset();
 
   /**
-   * Bind the given value to the parameter at aParamIndex.
+   * Bind the given value to the parameter at aParamIndex. Index 0
+   * denotes the first numbered argument or ?1.
    */
   void bindUTF8StringParameter(in unsigned long aParamIndex,
                                in AUTF8String aValue);