Gracefully deal with code addresses that are out of range in MutableMethodImplementation

The code addresses in debug info items are not verified, and may be out of
bounds. If this happens, we just clamp them to the maximum code address.

Author: JesusFreke

dexlib2/src/main/java/org/jf/dexlib2/builder/MutableMethodImplementation.java

@@ -473,6 +473,9 @@ private void fixInstructions() {
     private int mapCodeAddressToIndex(@Nonnull int[] codeAddressToIndex, int codeAddress) {
         int index;
         do {
+            if (codeAddress >= codeAddressToIndex.length) {
+                codeAddress = codeAddressToIndex.length - 1;
+            }
             index = codeAddressToIndex[codeAddress];
             if (index < 0) {
                 codeAddress--;