RFR: fix normalize method in RuntimeHelper.java.template [v2]

[Jason Thomas]

> This was failing for non-primitive types. Here's an example that demonstrates the behavior.
> 
> `jextract --source -t org.unix -I /usr/include /usr/include/stdio.h`
> 
> 
> import java.lang.foreign.Arena;
> import java.lang.foreign.MemorySegment;
> 
> import static org.unix.stdio_h.*;
> 
> public class Testing {
>     public static void main(String[] args) {
>         Arena arena = Arena.ofConfined();
>         MemorySegment hello = arena.allocateUtf8String("Hello %s\n");
>         MemorySegment world = arena.allocateUtf8String("World");
>         printf(hello, world);
>         fflush(NULL());
>     }
> }
> 
> Exception in thread "main" java.lang.AssertionError: should not reach here
> 	at org.unix.stdio_h.printf(stdio_h.java:1520)
> 	at org.jt70.panama_article.Testing.main(Testing.java:13)
> Caused by: java.lang.IllegalArgumentException: Invalid type for ABI: jdk.internal.foreign.NativeMemorySegmentImpl
> 	at org.unix.RuntimeHelper$VarargsInvoker.normalize(RuntimeHelper.java:231)
> 	at org.unix.RuntimeHelper$VarargsInvoker.invoke(RuntimeHelper.java:166)
> 	at org.unix.stdio_h.printf(stdio_h.java:1518)
> 	... 1 more

Jason Thomas has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains one commit:

  fix normalize method

-------------

Changes: https://git.openjdk.org/jextract/pull/131/files
 Webrev: https://webrevs.openjdk.org/?repo=jextract&pr=131&range=01
  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jextract/pull/131.diff
  Fetch: git fetch https://git.openjdk.org/jextract.git pull/131/head:pull/131

PR: https://git.openjdk.org/jextract/pull/131