The "LerpWhiteTo" missing function displays an error when the Shadows.hlsl shader is included in a Shader file

How to reproduce:
1. Create and open a new URP project
2. Import the “VertexColored.shader“ file and select it
3. Observe the Inspector

Expected result: No errors are displayed
Actual result: A “Shader error in 'Custom/VertexColored': undeclared identifier 'LerpWhiteTo'“ error is displayed

Reproducible in: 2022.3.59f1, 6000.0.41f1, 6000.1.0a8
Not reproducible in: 6000.1.0b9, 6000.2.0a6
Fixed in: 6000.1.0a9

Reproduced on: Windows 11 Pro (24H2), macOS 15.3.1 (by the reporter)
Not reproduced on: No other environment tested