Iterate over PcDescriptors only via iterators, not via an index. (preparation for more compression …

runtime/vm/intermediate_language.cc

Index: runtime/vm/intermediate_language.cc
===================================================================
--- runtime/vm/intermediate_language.cc	(revision 38030)
+++ runtime/vm/intermediate_language.cc	(working copy)
@@ -2054,7 +2054,7 @@
 void JoinEntryInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
   __ Bind(compiler->GetJumpLabel(this));
   if (!compiler->is_optimizing()) {
-    compiler->AddCurrentDescriptor(PcDescriptors::kDeopt,
+    compiler->AddCurrentDescriptor(RawPcDescriptors::kDeopt,
                                    deopt_id_,
                                    Scanner::kNoSourcePos);
   }
@@ -2292,7 +2292,7 @@
   } else {
     // Unoptimized code.
     ASSERT(!HasICData());
-    compiler->AddCurrentDescriptor(PcDescriptors::kDeopt,
+    compiler->AddCurrentDescriptor(RawPcDescriptors::kDeopt,
                                    deopt_id(),
                                    token_pos());
     compiler->GenerateInstanceCall(deopt_id(),
@@ -2355,7 +2355,7 @@
   if (!compiler->is_optimizing()) {
     // Some static calls can be optimized by the optimizing compiler (e.g. sqrt)
     // and therefore need a deoptimization descriptor.
-    compiler->AddCurrentDescriptor(PcDescriptors::kDeopt,
+    compiler->AddCurrentDescriptor(RawPcDescriptors::kDeopt,
                                    deopt_id(),
                                    token_pos());
   }