[FDS-32] Expressions are listed as undefined.

FusionDebug attempted to evaluate the expression, but either:

• it didn’t return a value (for function calls), or
• one or more of the variables or functions referenced by the expression was not available at the current debugger position.

In the latter case, the expression will be correctly evaluated when all the components comprising it are visible (using normal ColdFusion visibility rules) from the current position of the debugger.

No expressions are evaluated unless a thread is currently paused. Clicking on a frame within the Debug View causes the expressions to be evaluated in the context of the instruction pointer in that frame.