[Bug 55428] New: MIssing support for "if" statement attributes

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=55428

Bug ID: 55428
           Summary: MIssing support for "if" statement attributes
           Product: vkd3d
           Version: 1.8
          Hardware: x86-64
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: hlsl
          Assignee: [e-mail]
          Reporter: [e-mail]
      Distribution: ---

Created attachment 74990
  --> https://bugs.winehq.org/attachment.cgi?id=74990
test

Spider-Man: Shattered Dimensions fails to compile attached shader:

---
03b8:trace:d3dcompiler:D3DCompile data 090FE2C0, data_size 15602, filename
(null), defines 00000000, include 00000000, entrypoint "PixelShaderMain",
target "ps_3_0", sflags 0x8, eflags 0, shader 090EE26C, error_messages
090EE270.
03b8:trace:d3dcompiler:D3DCompile2 data 090FE2C0, data_size 15602, filename
(null), macros 00000000, include 00000000, entry_point "PixelShaderMain",
profile "ps_3_0", flags 0x8, effect_flags 0, secondary_flags 0, secondary_data
00000000, secondary_data_size 0, shader_blob 090EE26C, messages_blob 090EE270.
03b8:fixme:d3dcompiler:D3DCompile2 Ignoring flags 0x8.
03b8:err:d3dcompiler:D3DCompile2 Failed to compile shader, vkd3d result -4.
03b8:err:d3dcompiler:D3DCompile2 Shader log:
03b8:err:d3dcompiler:D3DCompile2     <anonymous>:187:1: E5000: syntax error,
unexpected '['
03b8:err:d3dcompiler:D3DCompile2 
---

This needs support for both [flatten] and [branch] attributes.