Implement Interface Method Tables (IMT).

Change-Id: Idf7fe85e1293453a8ad862ff2380dcd5db4e3a39
diff --git a/compiler/oat_test.cc b/compiler/oat_test.cc
index af86743..815bca5 100644
--- a/compiler/oat_test.cc
+++ b/compiler/oat_test.cc
@@ -149,7 +149,7 @@
 TEST_F(OatTest, OatHeaderSizeCheck) {
   // If this test is failing and you have to update these constants,
   // it is time to update OatHeader::kOatVersion
-  EXPECT_EQ(64U, sizeof(OatHeader));
+  EXPECT_EQ(72U, sizeof(OatHeader));
   EXPECT_EQ(28U, sizeof(OatMethodOffsets));
 }