[fix: vim plugin completion]
[fix: vim plugin completion]

	issue: using '__nested1__' completion in combination with
		   'vimgdb#complete#file()' did return empty lists

	reason: always passing last token of the vim command line to
			'__nested__' functions instead of the current token.

	fix: pass current token to the '__nested__' function.

jnow-87/vimgdb,jnow-87/vimgdb,jnow-87/vimgdb