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/optimizing/ssa_builder.h b/compiler/optimizing/ssa_builder.h
index 45dac54..978f113 100644
--- a/compiler/optimizing/ssa_builder.h
+++ b/compiler/optimizing/ssa_builder.h
@@ -48,9 +48,11 @@
 class SsaBuilder : public ValueObject {
  public:
   SsaBuilder(HGraph* graph,
+             Handle<mirror::ClassLoader> class_loader,
              Handle<mirror::DexCache> dex_cache,
              VariableSizedHandleScope* handles)
       : graph_(graph),
+        class_loader_(class_loader),
         dex_cache_(dex_cache),
         handles_(handles),
         agets_fixed_(false),
@@ -115,6 +117,7 @@
   void RemoveRedundantUninitializedStrings();
 
   HGraph* graph_;
+  Handle<mirror::ClassLoader> class_loader_;
   Handle<mirror::DexCache> dex_cache_;
   VariableSizedHandleScope* const handles_;