Package Compiler never empties the stale tracker

[u9g]

The project compiler empties the stale tracker immediately when compiling

gleam/compiler-core/src/build/project_compiler.rs

Line 154 in 2c59b9c

self.stale_modules.empty();

However, when calling package_compiler.rs's compile() via the LSP, we don't empty the stale_tracker because we sidestep the ProjectCompiler by compiling using the LspProjectCompiler, which does not clear the stale tracker.

I think the line that we should empty the stale tracker would be right above here

gleam/compiler-core/src/language_server/compiler.rs

Line 102 in 2c59b9c

// Verify that the build directory was created using the same version of

[u9g]

Here's an example patch of what I'm suggesting:
u9g@577e8e6

I might be missing something though as the comment here specifically mentions clearing the caches for LSP

gleam/compiler-core/src/build/project_compiler.rs

Line 153 in 2c59b9c

// LSP engine so state could be reused if we don't reset it.

[lpil]

Ah! I'm not very fresh on this code so I'm not sure what the consequences are here. What is it that happens due to forgetting to reset this?