Use specialized _FbUint8List and Uint8ListReader.

pkg/analyzer/lib/src/summary/flat_buffers.dart

Index: pkg/analyzer/lib/src/summary/flat_buffers.dart
diff --git a/pkg/analyzer/lib/src/summary/flat_buffers.dart b/pkg/analyzer/lib/src/summary/flat_buffers.dart
index 0464127939e6d806f17a551f37f774db1d676f9e..410d9d4b836cb6659996a1f76b51512016fda25c 100644
--- a/pkg/analyzer/lib/src/summary/flat_buffers.dart
+++ b/pkg/analyzer/lib/src/summary/flat_buffers.dart
@@ -720,6 +720,21 @@ class Uint32Reader extends Reader<int> {
 }
 
 /**
+ * Reader of lists of unsigned 8-bit integer values.
+ *
+ * The returned unmodifiable lists lazily read values on access.
+ */
+class Uint8ListReader extends Reader<List<int>> {
+  const Uint8ListReader();
+
+  @override
+  int get size => 4;
+
+  @override
+  List<int> read(BufferPointer bp) => new _FbUint8List(bp.derefObject());
+}
+
+/**
  * The reader of unsigned 8-bit integers.
  */
 class Uint8Reader extends Reader<int> {
@@ -840,6 +855,18 @@ class _FbUint32List extends _FbList<int> {
 }
 
 /**
+ * List backed by 8-bit unsigned integers.
+ */
+class _FbUint8List extends _FbList<int> {
+  _FbUint8List(BufferPointer bp) : super(bp);
+
+  @override
+  int operator [](int i) {
+    return bp._getUint8(4 + i);
+  }
+}
+
+/**
  * Class that describes the structure of a table.
  */
 class _VTable {