Format all tests.

tests/language_strong/stack_trace_test.dart

Index: tests/language_strong/stack_trace_test.dart
diff --git a/tests/language_strong/stack_trace_test.dart b/tests/language_strong/stack_trace_test.dart
index 5b728a95b8e4086d4d5e101bbeb2f0c3e5d9b44b..1cf429e142c366e4e4453ce05188b6da9f258419 100644
--- a/tests/language_strong/stack_trace_test.dart
+++ b/tests/language_strong/stack_trace_test.dart
@@ -61,7 +61,8 @@ class Helper {
     try {
       func();
     } on MyException catch (exception) {
-      throw new MyException("Exception Test for stack trace being printed");;
+      throw new MyException("Exception Test for stack trace being printed");
+      ;
     }
     return 10;
   }
@@ -74,7 +75,6 @@ class Helper {
     }
     return 10;
   }
-
 }
 
 class StackTraceTest {
@@ -83,7 +83,6 @@ class StackTraceTest {
   }
 }
 
-
 // Test that the full stack trace is generated for rethrow.
 class RethrowStacktraceTest {
   var config = 0;
@@ -132,7 +131,6 @@ class RethrowStacktraceTest {
   }
 }
 
-
 main() {
   StackTraceTest.testMain();
   RethrowStacktraceTest.testMain();