Return the index of the last occurrence of a string.
Source position: classesh.inc line 1034
public function TStrings.LastIndexOf(  | 
const S: string;  | 
aStart: Integer  | 
const S: string  | 
):Integer;  | 
LastIndexOf returns the index of the last occurrence of the string S. If aStart is specified, the search starts at the specified index in the list (it defaults to Count-1). If aStart is negative, it is used as an offset to Count, i.e. aCount equal to -1 will start the search at Count-1.
If aStart is larger than Count-1 it will be capped to Count-1.
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Find a string in the list and return its position.  | 
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Finds an object in the list and returns its index.  |