Fixed typo which broke the test

Language/Variables/Evaluation_of_Implicit_Variable_Getters/definition_t02.dart

diff --git a/Language/Variables/Evaluation_of_Implicit_Variable_Getters/definition_t02.dart b/Language/Variables/Evaluation_of_Implicit_Variable_Getters/definition_t02.dart
index c2029c9..e13f243 100644
--- a/Language/Variables/Evaluation_of_Implicit_Variable_Getters/definition_t02.dart
+++ b/Language/Variables/Evaluation_of_Implicit_Variable_Getters/definition_t02.dart
@@ -54,7 +54,7 @@
 f(func) {
   try {
     throw 1; // caugth exceptions do not matter
-  } on int catch (e) {
+  } on int catch (_) {
     count++;
     if (count < 20) func();
   }
@@ -77,7 +77,7 @@
   Expect.equals(null, C.sTyped);
 
   () => C.sFinal;
-  Expect.throws(() { C.sFinal; };
+  Expect.throws(() { C.sFinal; });
 
   () => C.sFinalTyped;
   Expect.throws(() { C.sFinalTyped; });