[Backport] [Oracle GraalVM] [GR-71539] Backport to 23.1: TruffleStrings: fix incorrect offset handling in FromJavaStringNode.

[bulasevich]

This PR backports:

• [GR-71513] TruffleStrings: fix incorrect offset handling in FromJavaStringNode. oracle/graal#12573

Conflicts:

change: moves IF condition under length1Profile.profile call
issue: mainline IF condition uses TStringOps.readFromByteArrayS1 introduced by 0b835c83 TruffleStrings: internal refactor
resolution: use the old IF condition, but move it under the length1Profile.profile call

<<<<<<< HEAD
                if (length == 1 && TStringOps.readFromByteArray(arrayJS, 1, charOffset) <= 0xff) {
                    return TStringConstants.getSingleByte(Encoding.UTF_16, TStringOps.readFromByteArray(arrayJS, 1, charOffset));
=======
                if (length1Profile.profile(node, length == 1 && TStringOps.readFromByteArrayS1(arrayJS, charOffset) <= 0xff)) {
                    return TStringConstants.getSingleByte(Encoding.UTF_16, TStringOps.readFromByteArrayS1(arrayJS, charOffset));
>>>>>>> 9b57a1aa02f (TruffleStrings: fix incorrect offset handling in FromJavaStringNode)

change: modifies the String hash calculation passed as a parameter to createFromByteArray
issue: not applicable without 4dc61ab9 Preserve already computed hash code in Java String to TruffleString conversion.
resolution: skipped

<<<<<<< HEAD
            TruffleString ret = TruffleString.createFromArray(array, offset, length, stride, Encoding.UTF_16, codePointLength, codeRange);
            if (length == javaString.length()) {
                assert charOffset == 0;
                TruffleString wrapped = TruffleString.createWrapJavaString(javaString, codePointLength, codeRange);
                ret.cacheInsertFirstBeforePublished(wrapped);
            }
            return ret;
=======
            int hash = fullLength ? TStringUnsafe.getJavaStringHashMasked(javaString) : 0;
            return TruffleString.createFromByteArray(array, offset, length, stride, Encoding.UTF_16, codePointLength, codeRange, hash, true);
>>>>>>> 9b57a1aa02f (TruffleStrings: fix incorrect offset handling in FromJavaStringNode)

Closes: #257

Test TStringFromJavaStringTest passed.