Fix bug with optimized try-catch on ARM/MIPS.

runtime/vm/intermediate_language.cc

Index: runtime/vm/intermediate_language.cc
===================================================================
--- runtime/vm/intermediate_language.cc	(revision 25871)
+++ runtime/vm/intermediate_language.cc	(working copy)
@@ -1592,24 +1592,6 @@
 }
 
 
-LocationSummary* CatchBlockEntryInstr::MakeLocationSummary() const {
-  UNREACHABLE();
-  return NULL;
-}
-
-
-void CatchBlockEntryInstr::EmitNativeCode(FlowGraphCompiler* compiler) {
-  __ Bind(compiler->GetJumpLabel(this));
-  compiler->AddExceptionHandler(catch_try_index(),
-                                try_index(),
-                                compiler->assembler()->CodeSize(),
-                                catch_handler_types_);
-  if (HasParallelMove()) {
-    compiler->parallel_move_resolver()->EmitNativeCode(parallel_move());
-  }
-}
-
-
 LocationSummary* PhiInstr::MakeLocationSummary() const {
   UNREACHABLE();
   return NULL;