formattedRect, formattedLeft, formattedWidth of chunks

[Paul Dupuis]

Just a heads up to anyone else out there who may be having VERY hard to 
track down crashes in LC 9.x.x.

The following functions: formattedRect, formattedLeft, formattedWidth 
when operating on chunk expressions (i.e. char X to Y of field Z) can 
cause an engine crash for certain field content.

This is present in all versions of LC 9.x.x (actual back to some version 
of LC8)

The issue is when the chuck contains tab characters.

See https://quality.livecode.com/show_bug.cgi?id=22882

FYI: formattedTop and formattedHeight of chunks still work.