8286390: Address possibly lossy conversions in jdk.incubator.foreign …

…moved to java.base

Reviewed-by: dfuchs

src/java.base/share/classes/jdk/internal/foreign/abi/ProgrammableInvoker.java

@@ -212,7 +212,7 @@ private MethodHandle specialize(MethodHandle leafHandle) {
 
         for (int i = 0; i < highLevelType.parameterCount(); i++) {
             List<Binding> bindings = callingSequence.argumentBindings(i);
-            argInsertPos += bindings.stream().filter(Binding.VMStore.class::isInstance).count() + 1;
+            argInsertPos += ((int) bindings.stream().filter(Binding.VMStore.class::isInstance).count()) + 1;
             // We interpret the bindings in reverse since we have to construct a MethodHandle from the bottom up
             for (int j = bindings.size() - 1; j >= 0; j--) {
                 Binding binding = bindings.get(j);