Revert^6 "Hash-based dex cache type array."

Fixed ImageWriter to write class table also if it contains
only boot class loader classes. Added a regression test and
added extra checks for debug-build to verify that dex cache
types from app image are also in the class table. Removed
some unnecessary debug output.

Test: 158-app-image-class-table
Bug: 34839984
Bug: 30627598
Bug: 34659969

This reverts commit 0b66d6174bf1f6023f9d36dda8538490b79c2e9f.

Change-Id: I6a747904940c6ebc297f4946feef99dc0adf930c
diff --git a/compiler/compiler.h b/compiler/compiler.h
index 2ca0b77..908d366 100644
--- a/compiler/compiler.h
+++ b/compiler/compiler.h
@@ -27,6 +27,7 @@
   class JitCodeCache;
 }
 namespace mirror {
+  class ClassLoader;
   class DexCache;
 }
 
@@ -63,7 +64,7 @@
                                   InvokeType invoke_type,
                                   uint16_t class_def_idx,
                                   uint32_t method_idx,
-                                  jobject class_loader,
+                                  Handle<mirror::ClassLoader> class_loader,
                                   const DexFile& dex_file,
                                   Handle<mirror::DexCache> dex_cache) const = 0;