Fix tests now that the SSA builder is pruning more phis.

Change-Id: I503400e7343322e31ad393d51367b404d6ed7bd8
diff --git a/compiler/optimizing/liveness_test.cc b/compiler/optimizing/liveness_test.cc
index 907eff1..0b0cfde 100644
--- a/compiler/optimizing/liveness_test.cc
+++ b/compiler/optimizing/liveness_test.cc
@@ -388,44 +388,44 @@
   // Make sure we create a preheader of a loop when a header originally has two
   // incoming blocks and one back edge.
   // Bitsets are made of:
-  // (constant0, constant4, constant5, phi in block 8, phi in block 4)
+  // (constant0, constant4, constant5, phi in block 8)
   const char* expected =
     "Block 0\n"
-    "  live in: (00000)\n"
-    "  live out: (11100)\n"
-    "  kill: (11100)\n"
+    "  live in: (0000)\n"
+    "  live out: (1110)\n"
+    "  kill: (1110)\n"
     "Block 1\n"
-    "  live in: (11100)\n"
-    "  live out: (01100)\n"
-    "  kill: (00000)\n"
+    "  live in: (1110)\n"
+    "  live out: (0110)\n"
+    "  kill: (0000)\n"
     "Block 2\n"
-    "  live in: (01000)\n"
-    "  live out: (00000)\n"
-    "  kill: (00000)\n"
+    "  live in: (0100)\n"
+    "  live out: (0000)\n"
+    "  kill: (0000)\n"
     "Block 3\n"
-    "  live in: (00100)\n"
-    "  live out: (00000)\n"
-    "  kill: (00000)\n"
+    "  live in: (0010)\n"
+    "  live out: (0000)\n"
+    "  kill: (0000)\n"
     "Block 4\n"  // loop header
-    "  live in: (00000)\n"
-    "  live out: (00001)\n"
-    "  kill: (00001)\n"
+    "  live in: (0001)\n"
+    "  live out: (0001)\n"
+    "  kill: (0000)\n"
     "Block 5\n"  // back edge
-    "  live in: (00001)\n"
-    "  live out: (00000)\n"
-    "  kill: (00000)\n"
+    "  live in: (0001)\n"
+    "  live out: (0001)\n"
+    "  kill: (0000)\n"
     "Block 6\n"  // return block
-    "  live in: (00001)\n"
-    "  live out: (00000)\n"
-    "  kill: (00000)\n"
+    "  live in: (0001)\n"
+    "  live out: (0000)\n"
+    "  kill: (0000)\n"
     "Block 7\n"  // exit block
-    "  live in: (00000)\n"
-    "  live out: (00000)\n"
-    "  kill: (00000)\n"
+    "  live in: (0000)\n"
+    "  live out: (0000)\n"
+    "  kill: (0000)\n"
     "Block 8\n"  // synthesized pre header
-    "  live in: (00000)\n"
-    "  live out: (00000)\n"
-    "  kill: (00010)\n";
+    "  live in: (0000)\n"
+    "  live out: (0001)\n"
+    "  kill: (0001)\n";
 
   const uint16_t data[] = ONE_REGISTER_CODE_ITEM(
     Instruction::CONST_4 | 0 | 0,