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

runtime/vm/stub_code_mips.cc

 // Copyright (c) 2013, 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/globals.h"
 #if defined(TARGET_ARCH_MIPS)
 
 #include "vm/assembler.h"
 #include "vm/compiler.h"
 #include "vm/dart_entry.h"
@@ skipping 885 matching lines @@
   // kExitLinkSlotFromEntryFp must be kept in sync with the code below.
   ASSERT(kExitLinkSlotFromEntryFp == -24);
   __ sw(T0, Address(SP, 0 * kWordSize));
 
   // After the call, The stack pointer is restored to this location.
   // Pushed S0-7, F20-31, T0, T0, T1 = 23.
 
   // Load arguments descriptor array into S4, which is passed to Dart code.
   __ lw(S4, Address(A1, VMHandles::kOffsetOfRawPtrInHandle));
 
+  // No need to check for type args, disallowed by DartEntry::InvokeFunction.
   // Load number of arguments into S5.
   __ lw(T1, FieldAddress(S4, ArgumentsDescriptor::count_offset()));
   __ SmiUntag(T1);
 
   // Compute address of 'arguments array' data area into A2.
   __ lw(A2, Address(A2, VMHandles::kOffsetOfRawPtrInHandle));
 
   // Set up arguments for the Dart call.
   Label push_arguments;
   Label done_push_arguments;
@@ skipping 1533 matching lines @@
 }
 
 
 void StubCode::GenerateAsynchronousGapMarkerStub(Assembler* assembler) {
   __ break_(0);
 }
 
 }  // namespace dart
 
 #endif  // defined TARGET_ARCH_MIPS