Streams: Consistent behaviour when reading from stream with error.

The streaming operator doesn't short-circuit, consider the following
snippet:

    void foo(InputStream& stream) {
        int a, b;
        stream >> a >> b;
    }

If the first read fails, the second is called regardless. It should be
well defined what happens in this case: nothing.

Libraries/LibCompress/Gzip.cpp

@@ -68,6 +68,9 @@ GzipDecompressor::~GzipDecompressor()
 // FIXME: Again, there are surely a ton of bugs because the code doesn't check for read errors.
 size_t GzipDecompressor::read(Bytes bytes)
 {
+    if (has_any_error())
+        return 0;
+
     if (m_current_member.has_value()) {
         size_t nread = current_member().m_stream.read(bytes);
         current_member().m_checksum.update(bytes.trim(nread));