(Re)move methods from internal.Lists that are not used, or only used once.

runtime/lib/internal_patch.dart

Index: runtime/lib/internal_patch.dart
diff --git a/runtime/lib/internal_patch.dart b/runtime/lib/internal_patch.dart
index 88bff92c4803143f6e19e35290a1ab2ac5c05604..57bea3f85d1a714d3bf86087c6b620654c987d63 100644
--- a/runtime/lib/internal_patch.dart
+++ b/runtime/lib/internal_patch.dart
@@ -43,3 +43,20 @@ bool _classRangeCheck(int cid, int lowerLimit, int upperLimit) {
 bool _classRangeCheckNegative(int cid, int lowerLimit, int upperLimit) {
   return cid < lowerLimit || cid > upperLimit;
 }
+
+// Utility class now only used by the VM.
+class Lists {
+  static void copy(List src, int srcStart,

[floitsch, 2017/02/15 17:11:38]

Nit: use full names.
That said: I don't think this is really public, right?

[Lasse Reichstein Nielsen, 2017/02/17 11:25:20]

Correct. I dare not touch it, since it seems to be detected by the VM method
recognizer.

+                   List dst, int dstStart, int count) {
+    if (srcStart < dstStart) {
+      for (int i = srcStart + count - 1, j = dstStart + count - 1;
+           i >= srcStart; i--, j--) {
+        dst[j] = src[i];
+      }
+    } else {
+      for (int i = srcStart, j = dstStart; i < srcStart + count; i++, j++) {
+        dst[j] = src[i];
+      }
+    }
+  }
+}