Fix two crashes.

dart/tests/language/language-leg.status

Index: dart/tests/language/language-leg.status
diff --git a/dart/tests/language/language-leg.status b/dart/tests/language/language-leg.status
index 2f203e24b313fc57e05c3969b0b2670f99c72f0a..d6f1ba0135fae3c17b15daad4558db66e68b6e02 100644
--- a/dart/tests/language/language-leg.status
+++ b/dart/tests/language/language-leg.status
@@ -37,6 +37,7 @@ ClosureBreakTest: Fail
 ClosureSharedStateTest: Fail
 ClosureTest: Fail
 ClosuresWithComplexParamsTest: Fail
+CompoundAssignmentOperatorTest: Fail
 ConstEscapeFrogTest: Fail
 ConstInit4NegativeTest: Fail
 ConstInitNegativeTest: Fail
@@ -65,6 +66,7 @@ ConstructorReturnWithInitAndArrowNegativeTest: Fail
 ConstructorReturnWithInitNegativeTest: Fail
 ConstructorTest: Fail
 ContextArgsWithDefaultsTest: Fail
+ContextTest: Crash # NPE in Types.isSubtype.
 ContinueTest: Fail
 CyclicImportTest: Fail
 DefaultClassImplicitConstructorTest: Fail
@@ -153,6 +155,7 @@ ImplicitThisTest/none: Fail
 ImpliedInterfaceTest: Fail
 ImportCoreImplNoPrefixTest: Fail
 ImportCoreNoPrefixTest: Fail
+IncrOpTest: Fail
 IndexTest: Fail
 InlineGetterTest: Fail
 InstFieldInitializer1NegativeTest: Fail
@@ -294,6 +297,7 @@ RethrowTest: Fail
 SavannahTest: Fail
 ScopeNegativeTest: Fail
 Setter0Test: Fail
+Setter1Test: Fail
 StackOverflowTest: Fail
 StackTraceTest: Fail
 StatementTest: Fail
@@ -372,17 +376,3 @@ Unary2Test: Fail
 UnaryTest: Fail
 UnboundGetterTest: Fail
 WhileTest: Fail
-
-# Tree validation fails.
-ClassLiteralTest/28: Crash
-ClassLiteralTest/29: Crash
-CompoundAssignmentOperatorTest: Crash
-IncrOpTest: Crash
-
-# NPE in Types.isSubtype.
-ContextTest: Crash
-
-# Type assertion in SsaBuilder.updateDefinition.
-Setter1Test: Crash
-SetterDeclaration2NegativeTest: crash
-SetterDeclarationNegativeTest: crash