Fix for eldoc-mode for ClojureCLR

When using the REPL, whenever you'd type the function name, because
Throwable is JVM specific, eldoc-mode would try to look up the
function and when it wouldn't find it, it would bomb out with the
complaint that Throwable wasn't defined. Which is to be expected since
it's not running on JVM.

Looking at the documentation
https://docs.oracle.com/javase/10/docs/api/java/lang/Throwable.html

"The Throwable class is the superclass of all errors and exceptions in
the Java language."

And in C#, Exception
https://docs.microsoft.com/en-us/dotnet/api/system.exception?redirectedfrom=MSDN&view=netframework-4.8

"This class is the base class for all exceptions."

Author: dotemacs

CHANGELOG.md

@@ -2,6 +2,7 @@
 
 ## master (unreleased)
 
+# [#164](https://github.com/clojure-emacs/inf-clojure/pull/164): Fix for eldoc-mode on ClojureCLR
 * [#160](https://github.com/clojure-emacs/inf-clojure/pull/160): Support [Joker](https://joker-lang.org/).
 * [#135](https://github.com/clojure-emacs/inf-clojure/pull/135): Improve command sanitation code.
 

inf-clojure.el

@@ -900,7 +900,7 @@ If you are using REPL types, it will pickup the most appropriate
       (clojure.core/meta
        (clojure.core/resolve
         (clojure.core/read-string \"%s\"))))
-     (catch Throwable t nil))"
+     (catch #?(:clj Throwable :cljr Exception) e nil))"
   "Form to query inferior Clojure for a function's arglists."
   :type 'string
   :safe #'stringp