Move helpers and interceptors to own library.

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 711d5f5d006b7de15ccc8c58bcd19991ae19c4d3..1809a77875a08b3cc2ef790a726c0935bc8231fb 100644
--- a/dart/tests/language/language-leg.status
+++ b/dart/tests/language/language-leg.status
@@ -113,8 +113,8 @@ Field7NegativeTest: Fail
 Field7aNegativeTest: Fail
 FieldMethodTest: Fail
 FinalParamNegativeTest: Fail
-FinalVarNegativeTest: Fail
 FinalSyntaxTest/none: Fail
+FinalVarNegativeTest: Fail
 For2Test: Fail
 ForTest: Fail
 FunctionArgumentTest: Fail
@@ -129,6 +129,7 @@ FunctionTypeAlias4Test: Fail
 FunctionTypeAliasTest: Fail
 FunctionTypeParameter2Test: Fail
 FunctionTypeParameterTest: Fail
+GCTest: Fail
 GenericDeepTest: Fail
 GenericInheritanceTest: Fail
 GenericInstanceofTest: Fail
@@ -139,7 +140,6 @@ GenericsTest: Fail
 GetSetSyntaxTest/none: Fail
 GetterClosureExecutionOrderTest: Crash
 GettersSettersTest: Fail
-GCTest: Fail
 IfTest: Fail
 ImplicitClosure1Test: Fail
 ImplicitClosureTest: Fail
@@ -250,7 +250,7 @@ Prefix21Test: Fail
 Prefix22Test: Fail
 Prefix23NegativeTest: Fail
 Private3Test: Fail
-PrivateMember3NegativeTest: Crash # NPE in TypeCheckerVisitor.visitSend.
+PrivateMember3NegativeTest: Fail
 PrivateMemberTest: Fail
 PrivateTest: Fail
 PropertyFieldOverrideTest: Fail
@@ -280,8 +280,8 @@ SavannahTest: Fail
 ScopeNegativeTest: Fail
 Script1NegativeTest: Fail
 ScriptNegativeTest: Fail
-SetterDeclarationNegativeTest: Fail
 SetterDeclaration2NegativeTest: Fail
+SetterDeclarationNegativeTest: Fail
 StackOverflowTest: Fail
 StackTraceTest: Fail
 StatementTest: Fail
@@ -333,9 +333,9 @@ TopLevelInInitializerTest: Fail
 TopLevelPrefixedDeclarationTest: Fail
 TopLevelVarTest: Fail
 ToplevelCollision2Test/none: Fail
-TryCatchSyntaxTest/08: Fail
 TryCatch2Test: Fail
 TryCatch3Test: Fail
+TryCatchSyntaxTest/08: Fail
 TypeChecksInFactoryMethodTest: Fail # Issue 925
 TypeDartcTest: Fail
 TypeVMTest: Fail