QML Debugging: Adding a watcher for a JavaScript variable results in Syntax error

Steps to reproduce:

• Open SameGame demo, put breakpoint in startNewGame() (as in test matrix)
• Run, click 'Start' on Game, debugger breaks
• On variable row in locals view, choose Watch Expression over variable 'row'
• Note that watcher shows up as @<address>->row with value 'Syntax error'

Log:
dJSDebugger sending EXEC watch.0 @2e470c0->row
dJSDebugger sending WATCH_EXPRESSIONS @2e470c0->row
dJSDebugger receiving RESULT watch.0 SyntaxError: Parse error
sStopped.
dJSDebugger sending EXEC watch.1 @2e470c0->column
dJSDebugger sending WATCH_EXPRESSIONS @2e470c0->column, @2e470c0->row
dJSDebugger receiving RESULT watch.1 SyntaxError: Parse error
dJSDebugger sending CONTINUE