Simplify some code.

Author: nirvdrum

src/main/java/org/truffleruby/core/rope/RopeNodes.java

@@ -365,10 +365,6 @@ public StringAttributes calculateAttributesGeneric(Encoding encoding, byte[] byt
                 final int lengthOfCurrentCharacter = calculateCharacterLengthNode.characterLength(encoding, CR_UNKNOWN, bytes, p, end);
 
                 if (validCharacterProfile.profile(lengthOfCurrentCharacter > 0)) {
-                    if (codeRange != CR_BROKEN) {
-                        codeRange = CR_VALID;
-                    }
-
                     p += lengthOfCurrentCharacter;
                 } else {
                     codeRange = CR_BROKEN;
@@ -378,7 +374,7 @@ public StringAttributes calculateAttributesGeneric(Encoding encoding, byte[] byt
                     if (fixedWidthProfile.profile(encoding.isFixedWidth())) {
                         characters = (bytes.length + encoding.minLength() - 1) / encoding.minLength();
 
-                        break;
+                        return new StringAttributes(characters, CR_BROKEN);
                     } else {
                         p++;
                     }

src/main/ruby/core/string.rb

@@ -550,7 +550,7 @@ def inspect
     ascii = enc.ascii_compatible?
     unicode = Truffle.invoke_primitive :encoding_is_unicode, enc
 
-    actual_encoding = enc.dummy? ? Truffle.invoke_primitive(:get_actual_encoding, self) : enc
+    actual_encoding = Truffle.invoke_primitive(:get_actual_encoding, self)
     if actual_encoding != enc
       enc = actual_encoding
       if unicode
@@ -636,8 +636,7 @@ def inspect_char(enc, result_encoding, ascii, unicode, index, char, array)
       end
     end
 
-    if (enc == result_encoding && Truffle.invoke_primitive(:character_printable_p, char)) ||
-        (ascii && char.ascii_only? && Truffle.invoke_primitive(:character_printable_p, char))
+    if Truffle.invoke_primitive(:character_printable_p, char) && (enc == result_encoding || (ascii && char.ascii_only?))
       array << char
     else
       code = char.ord