HLSL: support select() intristic

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Hi! We need to add "select" intristic support
```
struct PS {
float4 pos : SV_POSITION;
float4 color : COLOR0;
};

PS main(in float4 pos : SV_POSITION, in float4 color : COLOR0) : SV_Target
{
PS o;
o.pos = pos;
o.color = select(pos.zzzz <= color, float4(0.0f, 0.0f, 0.0f, 0.0f), float4(1.0f, 1.0f, 1.0f, 1.0f));
return o;
}
```

glslang.exe -D -V -e main test.vert test.vert ERROR: test.vert:10: 'select' : no matching overloaded function found ERROR: test.vert:10: 'declaration' : Expected test.vert(10): error at column 101, HLSL parsing failed. ERROR: 3 compilation errors. No code generated.

Start by reproducing the failure with the provided test.vert source and the glslang.exe -D -V -e main invocation. Trace how HLSL intrinsic overloads are parsed and resolved, then add select() support and verify that this shader compiles without the reported errors.

Written by the indexing model from the issue text.