use System.arraycopy in one more place in VMArray.

Author: timo

src/vm/jvm/runtime/org/perl6/nqp/sixmodel/reprs/VMArrayInstance.java

@@ -87,8 +87,7 @@ private void set_size_internal(ThreadContext tc, long n) {
         }
         else {
             SixModelObject[] new_slots = new SixModelObject[(int)ssize];
-            for (int i = 0; i < slots.length; i++)
-                new_slots[i] = slots[i];
+            System.arraycopy(slots, 0, new_slots, 0, slots.length);
             slots = new_slots;
         }
 

src/vm/jvm/runtime/org/perl6/nqp/sixmodel/reprs/VMArrayInstance_i.java

@@ -87,8 +87,7 @@ private void set_size_internal(ThreadContext tc, long n) {
         }
         else {
             long[] new_slots = new long[(int)ssize];
-            for (int i = 0; i < slots.length; i++)
-                new_slots[i] = slots[i];
+            System.arraycopy(slots, 0, new_slots, 0, slots.length);
             slots = new_slots;
         }
 

src/vm/jvm/runtime/org/perl6/nqp/sixmodel/reprs/VMArrayInstance_i16.java

@@ -87,8 +87,7 @@ private void set_size_internal(ThreadContext tc, long n) {
         }
         else {
             short[] new_slots = new short[(int)ssize];
-            for (int i = 0; i < slots.length; i++)
-                new_slots[i] = slots[i];
+            System.arraycopy(slots, 0, new_slots, 0, slots.length);
             slots = new_slots;
         }
 

src/vm/jvm/runtime/org/perl6/nqp/sixmodel/reprs/VMArrayInstance_i32.java

@@ -87,8 +87,7 @@ private void set_size_internal(ThreadContext tc, long n) {
         }
         else {
             int[] new_slots = new int[(int)ssize];
-            for (int i = 0; i < slots.length; i++)
-                new_slots[i] = slots[i];
+            System.arraycopy(slots, 0, new_slots, 0, slots.length);
             slots = new_slots;
         }
 

src/vm/jvm/runtime/org/perl6/nqp/sixmodel/reprs/VMArrayInstance_i8.java

@@ -87,8 +87,7 @@ private void set_size_internal(ThreadContext tc, long n) {
         }
         else {
             byte[] new_slots = new byte[(int)ssize];
-            for (int i = 0; i < slots.length; i++)
-                new_slots[i] = slots[i];
+            System.arraycopy(slots, 0, new_slots, 0, slots.length);
             slots = new_slots;
         }
 

src/vm/jvm/runtime/org/perl6/nqp/sixmodel/reprs/VMArrayInstance_n.java

@@ -87,8 +87,7 @@ private void set_size_internal(ThreadContext tc, long n) {
         }
         else {
             double[] new_slots = new double[(int)ssize];
-            for (int i = 0; i < slots.length; i++)
-                new_slots[i] = slots[i];
+            System.arraycopy(slots, 0, new_slots, 0, slots.length);
             slots = new_slots;
         }
 

src/vm/jvm/runtime/org/perl6/nqp/sixmodel/reprs/VMArrayInstance_s.java

@@ -87,8 +87,7 @@ private void set_size_internal(ThreadContext tc, long n) {
         }
         else {
             String[] new_slots = new String[(int)ssize];
-            for (int i = 0; i < slots.length; i++)
-                new_slots[i] = slots[i];
+            System.arraycopy(slots, 0, new_slots, 0, slots.length);
             slots = new_slots;
         }