Move Throw and ReThrow to the location based code generation.

runtime/vm/flow_graph_compiler_x64.cc

Index: runtime/vm/flow_graph_compiler_x64.cc
diff --git a/runtime/vm/flow_graph_compiler_x64.cc b/runtime/vm/flow_graph_compiler_x64.cc
index ba2fc440c8c05102b6a981b28b2b22a7e8186945..6db4d3b856b477538852aee1447fc279fdfdcd9b 100644
--- a/runtime/vm/flow_graph_compiler_x64.cc
+++ b/runtime/vm/flow_graph_compiler_x64.cc
@@ -1232,23 +1232,14 @@ void FlowGraphCompiler::VisitReturn(ReturnInstr* instr) {
 
 
 void FlowGraphCompiler::VisitThrow(ThrowInstr* instr) {
-  ASSERT(instr->exception()->IsUse());
-  GenerateCallRuntime(instr->cid(),
-                      instr->token_index(),
-                      instr->try_index(),
-                      kThrowRuntimeEntry);
-  __ int3();
+  // Moved to intermediate_language_x64.cc.
+  UNREACHABLE();
 }
 
 
 void FlowGraphCompiler::VisitReThrow(ReThrowInstr* instr) {
-  ASSERT(instr->exception()->IsUse());
-  ASSERT(instr->stack_trace()->IsUse());
-  GenerateCallRuntime(instr->cid(),
-                      instr->token_index(),
-                      instr->try_index(),
-                      kReThrowRuntimeEntry);
-  __ int3();
+  // Moved to intermediate_language_x64.cc.
+  UNREACHABLE();
 }