Switch-implementation.

tests/language/language-leg.status

Index: tests/language/language-leg.status
diff --git a/tests/language/language-leg.status b/tests/language/language-leg.status
index 2b88f744e98447a95e6e405fa82e0586cb932a12..298498b6c665107228016e6c99ffff62970ca280 100644
--- a/tests/language/language-leg.status
+++ b/tests/language/language-leg.status
@@ -32,7 +32,6 @@ DoubleToStringAsExponentialTest: Fail # -0.0 is printed as 0.0.
 DoubleToStringAsFixedTest: Fail # -0.0 is printed as 0.0.
 DoubleToStringAsPrecisionTest: Fail # -0.0 is printed as 0.0.
 DynamicTest: Fail # cannot resolve type F1
-EmptyBlockCaseTest: Fail # switch cases are not implemented
 Factory3Test: Fail # Handling of compile-time constants.
 FinalSyntaxTest/none: Fail # Incorrect compile-time constant handling.
 FunctionTypeAlias2Test: Fail # cannot resolve type f1
@@ -76,9 +75,7 @@ SuperImplicitClosureTest: Fail # Internal Error: SsaBuilder.visitIdentifier on n
 SuperOperatorTest: Fail # no method named + in class A
 SuperSetterTest: Fail # Internal Error: SsaBuilder.visitIdentifier on non-this
 SuperTest: Fail # cannot find tokens to produce error message for i++.
-SwitchFallthruTest: Fail # switch cases are not implemented
 SwitchLabelTest: Fail # switch cases are not implemented
-SwitchTest: Fail # switch cases are not implemented
 TypeDartcTest: Fail # non-empty instruction stack
 
 
@@ -238,8 +235,6 @@ StaticTopLevelTest/03: Fail, OK # Negative language test.
 StaticTopLevelTest/04: Fail, OK # Negative language test.
 StaticTopLevelTest/05: Fail, OK # Negative language test.
 StringInterpolation7NegativeTest: Fail, OK # Negative language test.
-Switch3NegativeTest: Fail, OK # Negative language test.
-Switch7NegativeTest: Fail, OK # Negative language test.
 SyntaxTest/47: Fail, OK # No error on body in const constructor.
 Throw7NegativeTest: Fail, OK # Negative language test.
 TryCatchSyntaxTest/08: Fail, OK # Negative language test.