Expect 'extends' in type parameters declaration and recover, issue 341

compiler/javatests/com/google/dart/compiler/CompilerTestCase.java

Index: compiler/javatests/com/google/dart/compiler/CompilerTestCase.java
diff --git a/compiler/javatests/com/google/dart/compiler/CompilerTestCase.java b/compiler/javatests/com/google/dart/compiler/CompilerTestCase.java
index c983d061327f09395f4ed8e20517b574ded83047..3c2cd900ba6edcd21be9322fa86c20cc1e1d269b 100644
--- a/compiler/javatests/com/google/dart/compiler/CompilerTestCase.java
+++ b/compiler/javatests/com/google/dart/compiler/CompilerTestCase.java
@@ -9,6 +9,7 @@ import com.google.dart.compiler.CommandLineOptions.CompilerOptions;
 import com.google.dart.compiler.ast.DartUnit;
 import com.google.dart.compiler.ast.LibraryUnit;
 import com.google.dart.compiler.parser.DartParser;
+import com.google.dart.compiler.parser.DartParserRunner;
 import com.google.dart.compiler.parser.DartScannerParserContext;
 import com.google.dart.compiler.parser.ParserContext;
 
@@ -274,6 +275,22 @@ public abstract class CompilerTestCase extends TestCase {
     return new DartScannerParserContext(src, sourceCode, listener);
   }
 
+  /**
+   * @return the {@link DartParserRunner} with parsed source. It can be used to request
+   *         {@link DartUnit} or compilation problems.
+   */
+  protected final DartParserRunner parseSource(String code) {
+    return DartParserRunner.parse(getName(), code, Integer.MAX_VALUE, false);
+  }
+
+  /**
+   * Parses given source and checks parsing problems.
+   */
+  protected final void parseExpectErrors(String code, ErrorExpectation... expectedErrors) {
+    List<DartCompilationError> errors = parseSource(code).getErrors();
+    assertErrors(errors, expectedErrors);
+  }
+
   protected static class ErrorExpectation {
     final ErrorCode errorCode;
     final int line;