Update to latest analyzer

lib/src/compiler.dart

Index: lib/src/compiler.dart
diff --git a/lib/src/compiler.dart b/lib/src/compiler.dart
index acf5494ed5505fdecc2413c79a29819afe8650d5..e20f6f85f109d543cc16660f774685e777315932 100644
--- a/lib/src/compiler.dart
+++ b/lib/src/compiler.dart
@@ -189,7 +189,9 @@ class BatchCompiler extends AbstractCompiler {
   bool _compileLibrary(LibraryElement library, CompilationNotifier notifier) {
     var success = _compilationRecord[library];
     if (success != null) {
-      if (!success) _failure = true;
+      if (!success) {
+        _failure = true;
+      }
       return success;
     }
 
@@ -250,7 +252,9 @@ class BatchCompiler extends AbstractCompiler {
     }
 
     // Return tentative success status.
-    if (!success) _failure = true;
+    if (!success) {
+      _failure = true;
+    }
     return success;
   }
 
@@ -459,7 +463,7 @@ abstract class AbstractCompiler {
 
       // TODO(jmesserly): for now, treat DDC errors as having a different
       // error level from Analayzer ones.
-      if (error.errorCode.name.startsWith('dev_compiler')) {
+      if (error.errorCode.name.startsWith('STRONG_MODE')) {
         reporter.onError(error);
         if (error.errorCode.errorSeverity == ErrorSeverity.ERROR) {
           failure = true;