Hello,

I enter this line into REPL:

(defparameter *x* (make-array 1 :fill-pointer t))

Then press C-c I, enter *x*. An sldb window appears with

| destructure-case failed: ("Fill pointer" (FILL-POINTER ARRAY)) | [Condition of type SIMPLE-ERROR] | | Restarts: | 0: [ABORT] Abort handling SLIME request. | 1: [ABORT] Reduce debugger level (leaving debugger, returning to toplevel). | 2: [TOPLEVEL] Restart at toplevel READ/EVAL/PRINT loop. | | Backtrace: | 0: (SWANK::INSPECTOR-CONTENT-FOR-EMACS ("Dimensions" #1=": " (:VALUE (1)) #2=(:NEWLINE) "Its element type is" #1# (:VALUE T) #2# "Total size" #1# ...)) | 1: ("hairy arg processor for SWANK::INSPECT-OBJECT" #(0) #<SWANK-BACKEND::SBCL-INSPECTOR {9C6F4B9}>) [...]

Patch is attached.