Zero width space characters break NativeMethods.txt

[elachlan]

Actual behavior

When a line contains a zero width space character it breaks the build.

Expected behavior

Zero width space characters should be ignored/removed when processing.

Repro steps

1. NativeMethods.txt content:

ActivateKeyboardLayout
BitBlt

String.Trim doesn't remove zero width space characters:
https://docs.microsoft.com/en-us/dotnet/api/system.string.trim?view=net-6.0

The .NET Framework 3.5 SP1 and earlier versions maintain an internal list of white-space characters that this method trims. Starting with the .NET Framework 4, the method trims all Unicode white-space characters (that is, characters that produce a true return value when they are passed to the IsWhiteSpace(Char) method). Because of this change, the Trim() method in the .NET Framework 3.5 SP1 and earlier versions removes two characters, ZERO WIDTH SPACE (U+200B) and ZERO WIDTH NO-BREAK SPACE (U+FEFF), that the Trim() method in the .NET Framework 4and later versions does not remove. In addition, the Trim() method in the .NET Framework 3.5 SP1 and earlier versions does not trim three Unicode white-space characters: MONGOLIAN VOWEL SEPARATOR (U+180E), NARROW NO-BREAK SPACE (U+202F), and MEDIUM MATHEMATICAL SPACE (U+205F).