matc fails compilation on ghost token

[Nolram12345]

Describe the bug
When attempting to compile a material that #includes the attached fragment shader file, the compile fails on a non-existent character (Ç).

To Reproduce
Steps to reproduce the behavior (not tested yet):

1. Append the given fragment shader source file into colorGrading.mat (or any other material) using a #include statement.
2. Attempt to compile the material with matc.

Expected behavior
The shader should compile correctly (or at least error on an actual error) and not fail on this non-existent symbol.

Logs

[61/185] Compiling material N:/BDE/filament/filament/src/materials/colorGrading/colorGrading.mat to N:/BDE/filament/cmake-build-release-visual-studio/filament/generated/material/colorGrading.filamat
FAILED: filament/generated/material/colorGrading.filamat N:/BDE/filament/cmake-build-release-visual-studio/filament/generated/material/colorGrading.filamat 
cmd.exe /C "cd /D N:\BDE\filament\cmake-build-release-visual-studio\filament && N:\BDE\filament\cmake-build-release-visual-studio\tools\matc\matc.exe -a opengl -a vulkan -p desktop -o N:/BDE/filament/cmake-build-release-visual-studio/filament/generated/material/colorGrading.filamat N:/BDE/filament/filament/src/materials/colorGrading/colorGrading.mat"
ERROR: Unable to parse fragment shader:
ERROR: ../../../../shaders/src/chromatic_aberration.fs:1: 'Ç' : unexpected token 
ERROR: 1 compilation errors.  No code generated.

Additional context
Tried this on Windows 10 22H2, using Clion as an IDE, on a fresh clone of the Filament repository.
This issue may be user error - I'm only just attempting to get my bearings in working with Filament's internals by implementing a simple post-processing effect.

I had to attach the .fs file renamed to a .txt due to GitHub limitations.

chromatic_aberration.txt