Remove the no-longer-needed F/I and D/J alias.

Rationale:
Now that our HIR is type clean (yeah!), we no longer have
to conservatively assume F/I and D/J are aliased. This
enables more accurate side effects analysis, with improvements
in all clients, such a LICM.

Refinement:
The HIR is not completely clean between building and SSA.
This refinement takes care of that, with new tests.

BUG=22538329

Change-Id: Id78ff0ff4e325aeebf0022d868937cff73d3a742
diff --git a/compiler/optimizing/licm_test.cc b/compiler/optimizing/licm_test.cc
index d446539..2a62643 100644
--- a/compiler/optimizing/licm_test.cc
+++ b/compiler/optimizing/licm_test.cc
@@ -169,13 +169,11 @@
   BuildLoop();
 
   // Populate the loop with instructions: set/get array with different types.
-  // ArrayGet is typed as kPrimByte and ArraySet given a float value in order to
-  // avoid SsaBuilder's typing of ambiguous array operations from reference type info.
   HInstruction* get_array = new (&allocator_) HArrayGet(
-      parameter_, int_constant_, Primitive::kPrimByte, 0);
+      parameter_, int_constant_, Primitive::kPrimInt, 0);
   loop_body_->InsertInstructionBefore(get_array, loop_body_->GetLastInstruction());
   HInstruction* set_array = new (&allocator_) HArraySet(
-      parameter_, int_constant_, float_constant_, Primitive::kPrimShort, 0);
+      parameter_, int_constant_, float_constant_, Primitive::kPrimFloat, 0);
   loop_body_->InsertInstructionBefore(set_array, loop_body_->GetLastInstruction());
 
   EXPECT_EQ(get_array->GetBlock(), loop_body_);
@@ -189,13 +187,11 @@
   BuildLoop();
 
   // Populate the loop with instructions: set/get array with same types.
-  // ArrayGet is typed as kPrimByte and ArraySet given a float value in order to
-  // avoid SsaBuilder's typing of ambiguous array operations from reference type info.
   HInstruction* get_array = new (&allocator_) HArrayGet(
-      parameter_, int_constant_, Primitive::kPrimByte, 0);
+      parameter_, int_constant_, Primitive::kPrimFloat, 0);
   loop_body_->InsertInstructionBefore(get_array, loop_body_->GetLastInstruction());
   HInstruction* set_array = new (&allocator_) HArraySet(
-      parameter_, get_array, float_constant_, Primitive::kPrimByte, 0);
+      parameter_, get_array, float_constant_, Primitive::kPrimFloat, 0);
   loop_body_->InsertInstructionBefore(set_array, loop_body_->GetLastInstruction());
 
   EXPECT_EQ(get_array->GetBlock(), loop_body_);