Materialize method descriptors when instantiating method objects.

Previously, when comparing method descriptors, one had to piecewise
compare the leaves of a method structure for equality.

With this change a flat method descriptor is computed and associated
to an object.  This will simplify comparisons for descriptor equality
used during verification and reflective method retrieval.

Change-Id: I91e5ac76fb3816a36716b34fe43d05cd7364897b
diff --git a/src/common_test.h b/src/common_test.h
index f5d7059..685a06c 100644
--- a/src/common_test.h
+++ b/src/common_test.h
@@ -178,6 +178,25 @@
   "AAAACQAAAAwBAAAGAAAAAgAAAFQBAAABIAAAAgAAAJQBAAABEAAABAAAAMABAAACIAAAEwAAAOIB"
   "AAADIAAAAgAAAHUCAAAAIAAAAgAAAH8CAAAAEAAAAQAAALACAAA=";
 
+// class CreateMethodDescriptor {
+//     Float m1(int a, double b, long c, Object d) { return null; }
+//     CreateMethodDescriptor m2(boolean x, short y, char z) { return null; }
+// }
+static const char kCreateMethodDescriptorDex[] =
+  "ZGV4CjAzNQBSU7aKdNXwH+uOpti/mvZ4/Dk8wM8VtNbgAgAAcAAAAHhWNBIAAAAAAAAAAEwCAAAQ"
+  "AAAAcAAAAAoAAACwAAAAAwAAANgAAAAAAAAAAAAAAAQAAAD8AAAAAQAAABwBAACkAQAAPAEAAJQB"
+  "AACcAQAAnwEAALwBAAC/AQAAwgEAAMUBAADfAQAA5gEAAOwBAAD/AQAAEwIAABYCAAAZAgAAHAIA"
+  "ACACAAABAAAAAwAAAAQAAAAFAAAABgAAAAkAAAAKAAAACwAAAAwAAAANAAAACAAAAAQAAAB8AQAA"
+  "BwAAAAUAAACIAQAADAAAAAgAAAAAAAAABAACAAAAAAAEAAEADgAAAAQAAAAPAAAABgACAAAAAAAE"
+  "AAAAAAAAAAYAAAAAAAAAAgAAAAAAAAA6AgAAAAAAAAEAAQABAAAAJAIAAAQAAABwEAMAAAAOAAgA"
+  "BwAAAAAAKQIAAAIAAAASABEABQAEAAAAAAAyAgAAAgAAABIAEQADAAAACQAHAAAAAAAEAAAAAgAB"
+  "AAMABgAGPGluaXQ+AAFDABtDcmVhdGVNZXRob2REZXNjcmlwdG9yLmphdmEAAUQAAUkAAUoAGExD"
+  "cmVhdGVNZXRob2REZXNjcmlwdG9yOwAFTElESkwABExaU0MAEUxqYXZhL2xhbmcvRmxvYXQ7ABJM"
+  "amF2YS9sYW5nL09iamVjdDsAAVMAAVYAAVoAAm0xAAJtMgABAAcOAAIEAAAAAAcOAAMDAAAABw4A"
+  "AAABAgCAgAS8AgEA1AIBAOgCDAAAAAAAAAABAAAAAAAAAAEAAAAQAAAAcAAAAAIAAAAKAAAAsAAA"
+  "AAMAAAADAAAA2AAAAAUAAAAEAAAA/AAAAAYAAAABAAAAHAEAAAEgAAADAAAAPAEAAAEQAAACAAAA"
+  "fAEAAAIgAAAQAAAAlAEAAAMgAAADAAAAJAIAAAAgAAABAAAAOgIAAAAQAAABAAAATAIAAA==";
+
 static inline DexFile* OpenDexFileBase64(const char* base64) {
   CHECK(base64 != NULL);
   size_t length;