Issue 839: Bad code leading to top level methods being something other than identifier

compiler/javatests/com/google/dart/compiler/parser/NegativeParserTest.java

Index: compiler/javatests/com/google/dart/compiler/parser/NegativeParserTest.java
diff --git a/compiler/javatests/com/google/dart/compiler/parser/NegativeParserTest.java b/compiler/javatests/com/google/dart/compiler/parser/NegativeParserTest.java
index 4f2eb83b2ad441c02ffbea50a378041469479120..747677b651a365394309ea06e0265326088c34fd 100644
--- a/compiler/javatests/com/google/dart/compiler/parser/NegativeParserTest.java
+++ b/compiler/javatests/com/google/dart/compiler/parser/NegativeParserTest.java
@@ -302,4 +302,15 @@ public class NegativeParserTest extends CompilerTestCase {
             "}"),
         dartUnit.toDietSource().trim());
   }
+
+  /**
+   * Function signatures require the name to be an identifier; especially true at the top level. 
+   * <p>
+   * http://code.google.com/p/dart/issues/detail?id=839
+   */
+  public void testTopLevelFunctionNotIdentifier() {
+    parseExpectErrors(
+        "foo.baz() {}",
+        errEx(ParserErrorCode.FUNCTION_NAME_EXPECTED_IDENTIFIER, 1, 1, 7));
+  }  
 }