Revert "Optimizing: Tag basic block allocations with their source."

Reverting so that we can have more discussion about the STL API.

This reverts commit 91e11c0c840193c6822e66846020b6647de243d5.

Change-Id: I187fe52f2c16b6e7c5c9d49c42921eb6c7063dba
diff --git a/compiler/optimizing/bounds_check_elimination.cc b/compiler/optimizing/bounds_check_elimination.cc
index 70ad408..ebc0adc 100644
--- a/compiler/optimizing/bounds_check_elimination.cc
+++ b/compiler/optimizing/bounds_check_elimination.cc
@@ -275,8 +275,9 @@
       // Loop header of loop_info. Exiting loop is normal.
       return false;
     }
-    for (HBasicBlock* successor : block->GetSuccessors()) {
-      if (!loop_info->Contains(*successor)) {
+    const GrowableArray<HBasicBlock*>& successors = block->GetSuccessors();
+    for (size_t i = 0; i < successors.Size(); i++) {
+      if (!loop_info->Contains(*successors.Get(i))) {
         // One of the successors exits the loop.
         return true;
       }
@@ -796,8 +797,8 @@
     HBasicBlock* new_pre_header = header->GetDominator();
     DCHECK(new_pre_header == header->GetLoopInformation()->GetPreHeader());
     HBasicBlock* if_block = new_pre_header->GetDominator();
-    HBasicBlock* dummy_block = if_block->GetSuccessor(0);  // True successor.
-    HBasicBlock* deopt_block = if_block->GetSuccessor(1);  // False successor.
+    HBasicBlock* dummy_block = if_block->GetSuccessors().Get(0);  // True successor.
+    HBasicBlock* deopt_block = if_block->GetSuccessors().Get(1);  // False successor.
 
     dummy_block->AddInstruction(new (graph->GetArena()) HGoto());
     deopt_block->AddInstruction(new (graph->GetArena()) HGoto());
@@ -844,14 +845,14 @@
     DCHECK(header->IsLoopHeader());
     HBasicBlock* pre_header = header->GetDominator();
     if (loop_entry_test_block_added) {
-      DCHECK(deopt_block->GetSuccessor(0) == pre_header);
+      DCHECK(deopt_block->GetSuccessors().Get(0) == pre_header);
     } else {
       DCHECK(deopt_block == pre_header);
     }
     HGraph* graph = header->GetGraph();
     HSuspendCheck* suspend_check = header->GetLoopInformation()->GetSuspendCheck();
     if (loop_entry_test_block_added) {
-      DCHECK_EQ(deopt_block, header->GetDominator()->GetDominator()->GetSuccessor(1));
+      DCHECK_EQ(deopt_block, header->GetDominator()->GetDominator()->GetSuccessors().Get(1));
     }
 
     HIntConstant* const_instr = graph->GetIntConstant(constant);
@@ -925,7 +926,7 @@
     DCHECK(header->IsLoopHeader());
     HBasicBlock* pre_header = header->GetDominator();
     if (loop_entry_test_block_added) {
-      DCHECK(deopt_block->GetSuccessor(0) == pre_header);
+      DCHECK(deopt_block->GetSuccessors().Get(0) == pre_header);
     } else {
       DCHECK(deopt_block == pre_header);
     }
@@ -1255,11 +1256,11 @@
 
     HBasicBlock* true_successor = instruction->IfTrueSuccessor();
     // There should be no critical edge at this point.
-    DCHECK_EQ(true_successor->GetPredecessors().size(), 1u);
+    DCHECK_EQ(true_successor->GetPredecessors().Size(), 1u);
 
     HBasicBlock* false_successor = instruction->IfFalseSuccessor();
     // There should be no critical edge at this point.
-    DCHECK_EQ(false_successor->GetPredecessors().size(), 1u);
+    DCHECK_EQ(false_successor->GetPredecessors().Size(), 1u);
 
     ValueRange* left_range = LookupValueRange(left, block);
     MonotonicValueRange* left_monotonic_range = nullptr;
@@ -1467,10 +1468,10 @@
     // Start with input 1. Input 0 is from the incoming block.
     HInstruction* input1 = phi->InputAt(1);
     DCHECK(phi->GetBlock()->GetLoopInformation()->IsBackEdge(
-        *phi->GetBlock()->GetPredecessor(1)));
+        *phi->GetBlock()->GetPredecessors().Get(1)));
     for (size_t i = 2, e = phi->InputCount(); i < e; ++i) {
       DCHECK(phi->GetBlock()->GetLoopInformation()->IsBackEdge(
-          *phi->GetBlock()->GetPredecessor(i)));
+          *phi->GetBlock()->GetPredecessors().Get(i)));
       if (input1 != phi->InputAt(i)) {
         return false;
       }