Allow binary operators on compile-time-constants.

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 d7a8d6593bb47a4ff12b756baf3836f3fdb9e7cc..db48dde594d68771185441caaed7e9d307fb5808 100644
--- a/tests/language/language-leg.status
+++ b/tests/language/language-leg.status
@@ -29,7 +29,6 @@ ClosureBreak2Test: Fail # SsaBuilder.visitLabelledStatement not implemented
 ClosureBreakTest: Fail # SsaBuilder.visitLabelledStatement not implemented
 ClosureTest: Fail # Internal Error: Cannot find value
 ConstInitTest: Fail # CompileTimeConstantHandler with arguments not implemented
-ConstNamedTest: Fail # CompileTimeConstantEvaluator not implemented
 ConstObjectsAreImmutableTest: Fail # map not implemented
 Constructor5Test: Fail # no matching constructor found
 ConstructorRedirectTest: Fail # staticFun(x, y) is only available in instance methods
@@ -117,10 +116,8 @@ SavannahTest: Fail # SsaBuilder.visitContinueStatement not implemented
 StatementTest: Fail # switch cases are not implemented
 StaticFieldTest: Fail # cannot resolve setValues
 StaticFinalFieldTest: Fail # map not implemented
-StringConcatTest: Fail # CompileTimeConstantEvaluator not implemented
 StringInterpolate2Test: Fail # map not implemented
 StringInterpolateNPETest: Fail # SsaBuilder.visitBreakStatement not implemented
-StringInterpolateTest: Fail # CompileTimeConstantEvaluator not implemented
 SuperAllNamedConstructorTest: Fail # Internal Error: Cannot find value
 SuperFieldAccessTest: Fail # Internal Error: SsaBuilder.visitIdentifier on non-this
 SuperFieldTest: Fail # no method named city in class B
@@ -137,7 +134,6 @@ SyntaxTest/none: Fail # non-empty instruction stack
 Throw3Test: Fail # SsaBuilder: throw without expression not implemented
 TopLevelFuncTest: Fail # cannot find tokens to produce error message for ()=> k++.
 TopLevelPrefixedDeclarationTest: Fail # library prefixes not handled
-TopLevelVarTest: Fail # CompileTimeConstantEvaluator not implemented
 ToplevelCollision2Test/none: Fail # duplicate definition
 TryCatch3Test: Fail # Internal Error: Cannot find value
 TypeChecksInFactoryMethodTest: Fail # named constructors with type arguments are not implemented