Remove JavaFile.pathContext

pkg/analyzer/lib/file_system/memory_file_system.dart

Index: pkg/analyzer/lib/file_system/memory_file_system.dart
diff --git a/pkg/analyzer/lib/file_system/memory_file_system.dart b/pkg/analyzer/lib/file_system/memory_file_system.dart
index 8d50f46073c56e0e613d34b1bfc78be2e1761810..34a483960ea5d000a98fd2155a1ad447f2d92b9b 100644
--- a/pkg/analyzer/lib/file_system/memory_file_system.dart
+++ b/pkg/analyzer/lib/file_system/memory_file_system.dart
@@ -34,7 +34,8 @@ class MemoryResourceProvider implements ResourceProvider {
   @override
   final AbsolutePathContext absolutePathContext;
 
-  MemoryResourceProvider({pathos.Context context})
+  MemoryResourceProvider(
+      {pathos.Context context, @deprecated bool isWindows: false})
       : _pathContext = context ?? pathos.context,
         absolutePathContext = new AbsolutePathContext(
             pathos.Style.platform == pathos.Style.windows);