Issue 5621. Report error when { is missing in 'switch'

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

Index: compiler/javatests/com/google/dart/compiler/parser/SyntaxTest.java
diff --git a/compiler/javatests/com/google/dart/compiler/parser/SyntaxTest.java b/compiler/javatests/com/google/dart/compiler/parser/SyntaxTest.java
index 4b96e97d9a03ff04a0aa7a9b8a8a218dd9a1c151..64474bd21f4b591d888c7dc22ce1892a86b71687 100644
--- a/compiler/javatests/com/google/dart/compiler/parser/SyntaxTest.java
+++ b/compiler/javatests/com/google/dart/compiler/parser/SyntaxTest.java
@@ -64,6 +64,16 @@ public class SyntaxTest extends AbstractParserTest {
     assertEquals("import ;\n", dir.toSource());
   }
 
+  public void test_switch_noLBrace() {
+    parseUnit("test.dart", Joiner.on("\n").join(
+        "// filler filler filler filler filler filler filler filler filler filler",
+        "main() {",
+        "  switch (0)",
+        "}",
+        ""),
+        ParserErrorCode.EXPECTED_TOKEN, 3, 12);
+  }
+
   public void test_getter() {
     parseUnit("getter.dart", Joiner.on("\n").join(
         "class G {",