Several java/foreign tests fail on x86_32 platforms

The following tests fail on x86_32 linux:

 java/foreign/StdLibTest.java
java/foreign/TestCircularInit1.java
java/foreign/TestCircularInit2.java
java/foreign/TestCondy.java
java/foreign/TestDowncall.java
java/foreign/TestFunctionDescriptor.java
java/foreign/TestIllegalLink.java
java/foreign/TestNative.java
java/foreign/TestNativeScope.java
java/foreign/TestUpcall.java
java/foreign/TestUpcallHighArity.java
java/foreign/TestUpcallStubs.java
java/foreign/TestVarArgs.java
java/foreign/callarranger/TestSysVCallArranger.java
java/foreign/callarranger/TestWindowsCallArranger.java
java/foreign/stackwalk/TestStackWalk.java
java/foreign/valist/VaListTest.java

These tests should just be disabled on that platform, since there is no CLinker implementation on that platform yet.