Exclude .ily files from compilation

[nittka]

Should .ily files be excluded from the compile process? Changes there should trigger compilation of the including files, but the ily file itself need not be passed to the compiler.

I noticed in real world examples I found on GitHub that the ily-files by themselves could cause LilyPond compile errors while the main file including them is OK. This exclusion would also improve performance due to fewer compiler calls.

[thSoft]

You are right, they should not be directly passed to the LilyPond compiler, but only to the Xtext builder. As you noticed, this will make more real-world integration tests pass.

[thSoft]

Fixed in 56b164c