AutoTest: Add convenient function to modify line and column.

Change-Id: Ica5fe4a8048b8faf75767bddb36a062ec438fcfe
Reviewed-by: Christian Stenger <christian.stenger@theqtcompany.com>

src/plugins/autotest/testtreemodel.cpp

@@ -723,7 +723,7 @@ void TestTreeModel::handleUnnamedQuickParseResult(const TestParseResult &result)
                                           func, result));
             continue;
         }
-        functionItem->modifyLineAndColumn(location.m_line, location.m_column);
+        functionItem->modifyLineAndColumn(location);
         functionItem->markForRemoval(false);
     }
 }