Roll sdk dependency to 34357cdad108dcba734949bd13bd28c76ea285e0

pkg/fletchc/lib/incremental/caching_compiler.dart

Index: pkg/fletchc/lib/incremental/caching_compiler.dart
diff --git a/pkg/fletchc/lib/incremental/caching_compiler.dart b/pkg/fletchc/lib/incremental/caching_compiler.dart
index 2a77a24e713eaf6590703d0f5d536a92c2cefbc0..7cf35e7e51dc03d8f67294622331776f3177799f 100644
--- a/pkg/fletchc/lib/incremental/caching_compiler.dart
+++ b/pkg/fletchc/lib/incremental/caching_compiler.dart
@@ -6,12 +6,12 @@ part of fletchc_incremental;
 
 /// Do not call this method directly. It will be made private.
 // TODO(ahe): Make this method private.
-Future<Compiler> reuseCompiler(
+Future<CompilerImpl> reuseCompiler(
     {CompilerDiagnostics diagnosticHandler,
      CompilerInput inputProvider,
      CompilerOutput outputProvider,
      List<String> options: const [],
-     Compiler cachedCompiler,
+     CompilerImpl cachedCompiler,
      Uri libraryRoot,
      Uri patchRoot,
      Uri nativesJson,
@@ -37,7 +37,7 @@ Future<Compiler> reuseCompiler(
   if (environment == null) {
     environment = {};
   }
-  Compiler compiler = cachedCompiler;
+  CompilerImpl compiler = cachedCompiler;
   if (compiler == null ||
       (libraryRoot != null && compiler.libraryRoot != libraryRoot) ||
       !compiler.hasIncrementalSupport ||