Don't restrict object search to modules

I'm unsure why this change is here but I could find no equivalent
logic in CRuby and this appears to prevent the search detailed in
jruby#8924 from succeeding. Removing this restriction fixes
that issue.

Fixes jruby#8924

Author: headius

core/src/main/java/org/jruby/RubyModule.java

@@ -4835,7 +4835,7 @@ public IRubyObject getConstantNoConstMissingSKipAutoload(String name) {
     private IRubyObject getConstantSkipAutoload(String name, boolean inherit, boolean searchObject, boolean inheritObject) {
         IRubyObject constant = iterateConstantNoConstMissing(name, this, inherit, false, inheritObject);
 
-        if (constant == null && !isClass() && searchObject) {
+        if (constant == null && searchObject) {
             constant = iterateConstantNoConstMissing(name, getRuntime().getObject(), inherit, false, true);
         }