Remove skipBrokenAstInference flag (it is no longer needed).

pkg/analyzer/test/src/summary/resynthesize_test.dart

Index: pkg/analyzer/test/src/summary/resynthesize_test.dart
diff --git a/pkg/analyzer/test/src/summary/resynthesize_test.dart b/pkg/analyzer/test/src/summary/resynthesize_test.dart
index 3f3f8ef792c5ff50d26d73bfac0bdfb37368ab71..13cc75e8d94da7a8e9aab279f1a8ffa8d0c5388d 100644
--- a/pkg/analyzer/test/src/summary/resynthesize_test.dart
+++ b/pkg/analyzer/test/src/summary/resynthesize_test.dart
@@ -51,16 +51,6 @@ abstract class AbstractResynthesizeTest extends AbstractSingleUnitTest {
 
   bool get checkPropagatedTypes => true;
 
-  /**
-   * Derived classes can override this getter to return `true` in order to
-   * cause certain checks to be skipped if they are known to fail with
-   * AST-based type inference.
-   *
-   * TODO(paulberry): remove this flag once AST-based type inference is fully
-   * working.
-   */
-  bool get skipBrokenAstInference => false;
-
   void addLibrary(String uri) {
     otherLibrarySources.add(context.sourceFactory.forUri(uri));
   }
@@ -1111,10 +1101,8 @@ abstract class AbstractResynthesizeTest extends AbstractSingleUnitTest {
     VariableElementImpl resynthesizedActual =
         getActualElement(resynthesized, desc);
     VariableElementImpl originalActual = getActualElement(original, desc);
-    if (!skipBrokenAstInference) {
-      compareFunctionElements(resynthesizedActual.initializer,
-          originalActual.initializer, '$desc initializer');
-    }
+    compareFunctionElements(resynthesizedActual.initializer,
+        originalActual.initializer, '$desc initializer');
     if (originalActual is ConstVariableElement) {
       Element oEnclosing = original.enclosingElement;
       if (oEnclosing is ClassElement && oEnclosing.isEnum) {