How to reproduce:
1. Open the user's attached "Bug_report_project" project
2. Compile the "Assets -> UpscaleShader" Shader

Expected result: The Shader is successfully compiled. No error is thrown
Actual result: Shader compiler errors are thrown in the Console log. In some versions, only "Unterminated macro list" error is thrown instead

Reproducible with: 2019.4.36f1, 2020.3.30f1, 2021.2.13f1, 2022.1.0b9, 2022.2.0a5

Thrown errors:
Shader Compiler IPC Exception: Terminating shader compiler process
Shader compiler: Compile SHADER_NAME - <Unnamed Pass>, Vertex Program: Internal error communicating with the shader compiler process. Please report a bug including this shader and the editor log.
Shader compiler: Compile SHADER_NAME- <Unnamed Pass>, Fragment Program: Internal error communicating with the shader compiler process. Please report a bug including this shader and the editor log.