Check for a passed-in type argument vector in the prolog of generic functions.

runtime/vm/compiler.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/compiler.h"
 
 #include "vm/assembler.h"
 
 #include "vm/ast_printer.h"
 #include "vm/block_scheduler.h"
@@ skipping 97 matching lines @@
 DECLARE_FLAG(bool, huge_method_cutoff_in_code_size);
 DECLARE_FLAG(bool, trace_failed_optimization_attempts);
 DECLARE_FLAG(bool, trace_irregexp);
 
 
 #ifndef DART_PRECOMPILED_RUNTIME
 
 
 bool UseKernelFrontEndFor(ParsedFunction* parsed_function) {
   const Function& function = parsed_function->function();
+  // TODO(regis): Kernel Front End needs to allocate a local to hold type args.
   return (function.kernel_offset() > 0) ||
-         (function.kind() == RawFunction::kNoSuchMethodDispatcher) ||
-         (function.kind() == RawFunction::kInvokeFieldDispatcher);
+         (!FLAG_reify_generic_functions &&
+          ((function.kind() == RawFunction::kNoSuchMethodDispatcher) ||
+           (function.kind() == RawFunction::kInvokeFieldDispatcher)));
 }
 
 
 void DartCompilationPipeline::ParseFunction(ParsedFunction* parsed_function) {
   if (!UseKernelFrontEndFor(parsed_function)) {
     Parser::ParseFunction(parsed_function);
     parsed_function->AllocateVariables();
   }
 }
 
@@ skipping 2201 matching lines @@
 
 
 bool BackgroundCompiler::IsDisabled() {
   UNREACHABLE();
   return true;
 }
 
 #endif  // DART_PRECOMPILED_RUNTIME
 
 }  // namespace dart