frog isolate fixes: minor changes to the isolate library + architecture.py

tests/language/language.status

Index: tests/language/language.status
diff --git a/tests/language/language.status b/tests/language/language.status
index 1224cad1a00dbd263efb6d99f3250836d44cd7f6..ededd916a72c87e47ab10999c3ce145a960e65ad 100644
--- a/tests/language/language.status
+++ b/tests/language/language.status
@@ -244,6 +244,7 @@ GetterClosureExecutionOrderTest: Pass # TODO(jmesserly): I don't think this is r
 ImplicitScopeTest: Fail
 ImpliedInterfaceTest: Fail
 IncrOpTest: Fail
+InstanceofTest: Fail
 Instanceof2Test: Fail
 InterfaceFactory3NegativeTest: Fail
 IsNotClass4NegativeTest: Fail
@@ -271,6 +272,7 @@ NullPointerExceptionTest: Fail
 NullTest: Fail
 NullToStringTest: Fail
 NumbersTest: Fail
+NumberSyntaxTest: Fail
 ObjectDynamicMethodTest: Fail
 OverrideMethodWithFieldTest/01: Fail
 OverrideFieldTest/01: Fail
@@ -320,17 +322,13 @@ PrivateMemberTest/none: Fail # test seems bad - see issue #353
 
 [ $component == frog || $component == frogsh ]
 # these tests are inconsistent in frogium and frogsh-node, investigate
-InstanceofTest: Fail
 StaticField1RunNegativeTest: Pass
 StaticField2RunNegativeTest: Pass
-NumberSyntaxTest: Fail
 
 [ $component == frogium ]
 # these tests are inconsistent in frogium and frogsh-node, investigate
 StaticField1RunNegativeTest: Pass # but error is not correct
 StaticField2RunNegativeTest: Pass # but error is not correct
-InstanceofTest: Timeout
-NumberSyntaxTest: Timeout
 
 [ $arch == x64 ]
 *: Skip