Geometry shader crashes the editor when upgrading editor version (on importing the shader and upgrading syntax).

Steps to Reproduce
------------------------
1.Download the attached project
2.Load in project in Unity version 5.3 or higher.

Result: The editor will crash while loading the project with the below stack trace.

========== OUTPUTING STACK TRACE ==================

0x00000001415E3D82 (Unity) memcmp
0x0000000140848815 (Unity) std::_Find<std::basic_string<char,std::char_traits<char>,stl_allocator<char,65,16> > const * __ptr64,std::basic_string<char,std::char_traits<char>,stl_allocator<char,65,16> > >
0x0000000140833E3A (Unity) std::_Tree_val<std::_Tset_traits<ShaderUpgradeNote,std::less<ShaderUpgradeNote>,std::allocator<ShaderUpgradeNote>,0> >::_Buynode<std::basic_string<char,std::char_traits<char>,stl_allocator<char,65,16> > >
0x0000000140834CA3 (Unity) ProcessShader
0x00000001408350A2 (Unity) UpgradeOldShaderSyntax
0x0000000140771985 (Unity) std::_Pair_base<UnityStr const ,PPtr<Texture> >::_Pair_base<UnityStr const ,PPtr<Texture> ><UnityStr const & __ptr64,PPtr<Texture> & __ptr64>
0x0000000140771F8A (Unity) UpgradeShadersIfNeeded
0x0000000140BE117E (Unity) Application::InitializeProject
0x0000000140E19FEE (Unity) WinMain
0x00000001415F5CC4 (Unity) read
0x00007FF937058102 (KERNEL32) BaseThreadInitThunk

========== END OF STACKTRACE ===========

Not reproducible in version:
5.2.4p1 (a094a7ad1692)

Reproduced in version:
5.3.2p1 (82077c0be25b)
5.4.0b4 (a7d7a3a2cef4)