fix incorrect timestamp attribute usage for posixStat and basicStat fallbacks

Author: timfel

graalpython/com.oracle.graal.python/src/com/oracle/graal/python/runtime/EmulatedPosixSupport.java

@@ -975,7 +975,7 @@ private static long[] unixStat(TruffleFile file, LinkOption... linkOptions) thro
                         LAST_ACCESS_TIME,
                         LAST_MODIFIED_TIME,
                         UNIX_CTIME), linkOptions);
-        return setTimestamps(attributes, new long[]{
+        return setTimestamps(attributes, UNIX_CTIME, new long[]{
                         attributes.get(UNIX_MODE),
                         attributes.get(UNIX_INODE),
                         attributes.get(UNIX_DEV),
@@ -1001,7 +1001,7 @@ private long[] posixStat(TruffleFile file, LinkOption... linkOptions) throws IOE
                         UNIX_GROUP,
                         UNIX_PERMISSIONS), linkOptions);
         final Set<PosixFilePermission> posixFilePermissions = attributes.get(UNIX_PERMISSIONS);
-        return setTimestamps(attributes, new long[]{
+        return setTimestamps(attributes, CREATION_TIME, new long[]{
                         posixPermissionsToMode(fileTypeBitsFromAttributes(attributes), posixFilePermissions),
                         getEmulatedInode(file), // ino
                         0, // dev
@@ -1040,7 +1040,7 @@ private long[] basicStat(TruffleFile file, LinkOption... linkOptions) throws IOE
             mode |= 0100;
         }
         int inode = getEmulatedInode(file);
-        return setTimestamps(attributes, new long[]{
+        return setTimestamps(attributes, CREATION_TIME, new long[]{
                         mode,
                         inode, // ino
                         0, // dev
@@ -1053,10 +1053,10 @@ private long[] basicStat(TruffleFile file, LinkOption... linkOptions) throws IOE
         });
     }
 
-    private static long[] setTimestamps(Attributes attributes, long[] statResult) {
+    private static long[] setTimestamps(Attributes attributes, TruffleFile.AttributeDescriptor<FileTime> ctimeDescriptor, long[] statResult) {
         FileTime atime = attributes.get(LAST_ACCESS_TIME);
         FileTime mtime = attributes.get(LAST_MODIFIED_TIME);
-        FileTime ctime = attributes.get(UNIX_CTIME);
+        FileTime ctime = attributes.get(ctimeDescriptor);
         statResult[7] = fileTimeToSeconds(atime);
         statResult[8] = fileTimeToSeconds(mtime);
         statResult[9] = fileTimeToSeconds(ctime);