Remove Int64 support from FlatBuffers.

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 5c1df2e66413c5589a11d1a2b0457e2ffd4707e0..5c62da6534d9cb5cc6609a8cbe4c623561fe683a 100644
--- a/pkg/analyzer/lib/src/summary/flat_buffers.dart
+++ b/pkg/analyzer/lib/src/summary/flat_buffers.dart
@@ -39,9 +39,6 @@ class BufferPointer {
   int _getInt32([int delta = 0]) =>
       _buffer.getInt32(_offset + delta, Endianness.LITTLE_ENDIAN);
 
-  int _getInt64([int delta = 0]) =>
-      _buffer.getInt64(_offset + delta, Endianness.LITTLE_ENDIAN);
-
   int _getInt8([int delta = 0]) => _buffer.getInt8(_offset + delta);
 
   int _getUint16([int delta = 0]) =>
@@ -118,22 +115,6 @@ class Builder {
   }
 
   /**
-   * Add the [field] with the given 64-bit signed integer [value].  The field is
-   * not added if the [value] is equal to [def].
-   */
-  void addInt64(int field, int value, [int def]) {
-    if (_currentVTable == null) {
-      throw new StateError('Start a table before adding values.');
-    }
-    if (value != def) {
-      int size = 8;
-      _prepare(size, 1);
-      _trackField(field);
-      _setInt64AtTail(_buf, _tail, value);
-    }
-  }
-
-  /**
    * Add the [field] with the given 8-bit signed integer [value].  The field is
    * not added if the [value] is equal to [def].
    */
@@ -241,14 +222,6 @@ class Builder {
   /**
    * This is a low-level method, it should not be invoked by clients.
    */
-  void lowWriteUint64(int value) {
-    _prepare(8, 1);
-    _setUint64AtTail(_buf, _tail, value);
-  }
-
-  /**
-   * This is a low-level method, it should not be invoked by clients.
-   */
   void lowWriteUint8(int value) {
     _prepare(1, 1);
     _buf.setUint8(_buf.lengthInBytes - _tail, value);
@@ -384,17 +357,9 @@ class Builder {
     _buf.setInt32(_buf.lengthInBytes - tail, x, Endianness.LITTLE_ENDIAN);
   }
 
-  static void _setInt64AtTail(ByteData _buf, int tail, int x) {
-    _buf.setInt64(_buf.lengthInBytes - tail, x, Endianness.LITTLE_ENDIAN);
-  }
-
   static void _setUint32AtTail(ByteData _buf, int tail, int x) {
     _buf.setUint32(_buf.lengthInBytes - tail, x, Endianness.LITTLE_ENDIAN);
   }
-
-  static void _setUint64AtTail(ByteData _buf, int tail, int x) {
-    _buf.setUint64(_buf.lengthInBytes - tail, x, Endianness.LITTLE_ENDIAN);
-  }
 }
 
 /**
@@ -411,19 +376,6 @@ class Int32Reader extends Reader<int> {
 }
 
 /**
- * The reader of 64-bit signed integers.
- */
-class Int64Reader extends Reader<int> {
-  const Int64Reader() : super();
-
-  @override
-  int get size => 8;
-
-  @override
-  int read(BufferPointer bp) => bp._getInt64();
-}
-
-/**
  * The reader of 8-bit signed integers.
  */
 class Int8Reader extends Reader<int> {