KernelToHexStringNode extends from PrimitiveArrayArgumentsNode + typo fix

Author: horakivo

src/main/java/org/truffleruby/core/kernel/KernelNodes.java

@@ -1824,9 +1824,8 @@ protected boolean isUntrusted(Object object,
 
     }
 
-    @NodeChild(value = "valueNode", type = RubyNode.class)
     @Primitive(name = "kernel_to_hex")
-    public abstract static class KernelToHexStringNode extends PrimitiveNode {
+    public abstract static class KernelToHexStringNode extends PrimitiveArrayArgumentsNode {
 
         @Specialization
         protected String toHexString(Object value,
@@ -1874,6 +1873,7 @@ protected RubyString toS(Object self,
         }
     }
 
+    // MRI: rb_any_to_s
     @GenerateUncached
     public abstract static class ToSNode extends RubyBaseNode {
 

src/main/java/org/truffleruby/stdlib/readline/ReadlineNodes.java

@@ -197,8 +197,8 @@ public abstract static class InsertTextNode extends CoreMethodNode {
         @Specialization
         protected RubyBasicObject insertText(RubyBasicObject readline, Object text,
                 @Cached ToJavaStringNode toJavaStringNode) {
-            final var testAsString = toJavaStringNode.execute(text);
-            getContext().getConsoleHolder().getReadline().getBuffer().write(testAsString);
+            final var textAsString = toJavaStringNode.execute(text);
+            getContext().getConsoleHolder().getReadline().getBuffer().write(textAsString);
             return readline;
         }
     }