Revert "ART: Refactor SsaBuilder for more precise typing info"

This reverts commit d9510dfc32349eeb4f2145c801f7ba1d5bccfb12.

Bug: 26208284

Bug: 24252151
Bug: 24252100
Bug: 22538329
Bug: 25786318

Change-Id: I5f491becdf076ff51d437d490405ec4e1586c010
diff --git a/compiler/optimizing/dead_code_elimination_test.cc b/compiler/optimizing/dead_code_elimination_test.cc
index f0f98ef..2c6a1ef 100644
--- a/compiler/optimizing/dead_code_elimination_test.cc
+++ b/compiler/optimizing/dead_code_elimination_test.cc
@@ -26,8 +26,6 @@
 
 namespace art {
 
-class DeadCodeEliminationTest : public CommonCompilerTest {};
-
 static void TestCode(const uint16_t* data,
                      const std::string& expected_before,
                      const std::string& expected_after) {
@@ -36,7 +34,7 @@
   HGraph* graph = CreateCFG(&allocator, data);
   ASSERT_NE(graph, nullptr);
 
-  TransformToSsa(graph);
+  graph->TryBuildingSsa();
 
   StringPrettyPrinter printer_before(graph);
   printer_before.VisitInsertionOrder();
@@ -57,6 +55,7 @@
   ASSERT_EQ(actual_after, expected_after);
 }
 
+
 /**
  * Small three-register program.
  *
@@ -70,7 +69,7 @@
  * L1: v2 <- v0 + v1            5.      add-int v2, v0, v1
  *     return-void              7.      return
  */
-TEST_F(DeadCodeEliminationTest, AdditionAndConditionalJump) {
+TEST(DeadCodeElimination, AdditionAndConditionalJump) {
   const uint16_t data[] = THREE_REGISTERS_CODE_ITEM(
     Instruction::CONST_4 | 1 << 8 | 1 << 12,
     Instruction::CONST_4 | 0 << 8 | 0 << 12,
@@ -132,7 +131,7 @@
  * L3: v2 <- v1 + 4             11.     add-int/lit16 v2, v1, #+4
  *     return                   13.     return-void
  */
-TEST_F(DeadCodeEliminationTest, AdditionsAndInconditionalJumps) {
+TEST(DeadCodeElimination, AdditionsAndInconditionalJumps) {
   const uint16_t data[] = THREE_REGISTERS_CODE_ITEM(
     Instruction::CONST_4 | 0 << 8 | 0 << 12,
     Instruction::CONST_4 | 1 << 8 | 1 << 12,