Drop computed handler count and index from AST.

src/ppc/full-codegen-ppc.cc

Index: src/ppc/full-codegen-ppc.cc
diff --git a/src/ppc/full-codegen-ppc.cc b/src/ppc/full-codegen-ppc.cc
index f6931f9e4dd687a414a27e7e01a3e8c293a770f5..db7c40150e964261852d4c7e19e6e21152b343a9 100644
--- a/src/ppc/full-codegen-ppc.cc
+++ b/src/ppc/full-codegen-ppc.cc
@@ -102,10 +102,6 @@ class JumpPatchSite BASE_EMBEDDED {
 // frames-ppc.h for its layout.
 void FullCodeGenerator::Generate() {
   CompilationInfo* info = info_;
-  handler_table_ =
-      Handle<HandlerTable>::cast(isolate()->factory()->NewFixedArray(
-          HandlerTable::LengthForRange(function()->handler_count()), TENURED));
-
   profiling_counter_ = isolate()->factory()->NewCell(
       Handle<Smi>(Smi::FromInt(FLAG_interrupt_budget), isolate()));
   SetFunctionPosition(function());
@@ -2164,7 +2160,8 @@ void FullCodeGenerator::VisitYield(Yield* expr) {
       // re-boxing.
       __ bind(&l_try);
       __ pop(r3);  // result
-      EnterTryBlock(expr->index(), &l_catch);
+      int handler_index = NewHandlerTableEntry();
+      EnterTryBlock(handler_index, &l_catch);
       const int try_block_size = TryCatch::kElementCount * kPointerSize;
       __ push(r3);  // result
       __ b(&l_suspend);
@@ -2174,7 +2171,7 @@ void FullCodeGenerator::VisitYield(Yield* expr) {
       const int generator_object_depth = kPointerSize + try_block_size;
       __ LoadP(r3, MemOperand(sp, generator_object_depth));
       __ push(r3);  // g
-      __ Push(Smi::FromInt(expr->index()));  // handler-index
+      __ Push(Smi::FromInt(handler_index));  // handler-index
       DCHECK(l_continuation.pos() > 0 && Smi::IsValid(l_continuation.pos()));
       __ LoadSmiLiteral(r4, Smi::FromInt(l_continuation.pos()));
       __ StoreP(r4, FieldMemOperand(r3, JSGeneratorObject::kContinuationOffset),
@@ -2188,7 +2185,7 @@ void FullCodeGenerator::VisitYield(Yield* expr) {
       __ pop(r3);  // result
       EmitReturnSequence();
       __ bind(&l_resume);  // received in r3
-      ExitTryBlock(expr->index());
+      ExitTryBlock(handler_index);
 
       // receiver = iter; f = 'next'; arg = received;
       __ bind(&l_next);