re PR java/19921 (wrong argument count for invokeInterface with new multidimensional array)

gcc/java:
	PR java/19921:
	* jcf-write.c (generate_bytecode_insns) <CALL_EXPR>: Note the
	stack effect of multianewarray.

libjava:
	For PR java/19929:
	* testsuite/libjava.lang/PR19929.out: New file.
	* testsuite/libjava.lang/PR19929.java: New file.

From-SVN: r95041

libjava/testsuite/libjava.lang/PR19929.java

@@ -0,0 +1,11 @@
+interface I {
+    void f(Object x);
+}
+
+class PR19929 {
+    static void g(I i) {
+      // gcj used to create invalid bytecode for this.
+      i.f(new Object[1][1]);
+    }
+  public static void main(String[] args) { }
+}