ExprFunctionCall - fix return type of function not being used

Author: ShaneBeee

src/main/java/io/github/syst3ms/skriptparser/structures/functions/ExprFunctionCall.java

@@ -110,6 +110,13 @@ public boolean init(Expression<?>[] expressions, int matchedPattern, ParseContex
         return true;
     }
 
+    @Override
+    public Class<?> getReturnType() {
+        Optional<Class<?>> returnType = (Optional<Class<?>>) this.function.getReturnType();
+        if (returnType.isPresent()) return returnType.get();
+        return Object.class;
+    }
+
     @Override
     public String toString(TriggerContext ctx, boolean debug) {
         return function.getName() + "(" + (parsedExpr != null ? parsedExpr.toString(ctx, debug) : "") + ")";