Merge nightly into main for the release!

[baronfel]

WHAT

🤖 Generated by Copilot at 63fa1ad

This pull request updates the FsAutoComplete project to support F# 6.0 features and use the latest FCS API. It modifies several files that deal with syntax analysis, code generation, code fixes, and testing to handle the new syntax, error codes, and record types introduced in F# 6.0. It also updates the dependencies to use compatible versions of FCS and its nightly feed.

🤖 Generated by Copilot at 63fa1ad

We're sailing on the F# 6.0 tide We've got to update the FCS API We'll match the new record syntax with pride And fix the error codes on the count of three

🆕🛠️🗑️

WHY

We're close to release and there's a pretty stable set of packages. Lets go ahead and sync to main now that we're at that point in the lifecycle.

HOW

🤖 Generated by Copilot at 63fa1ad

• Update FCS dependency and source URL to support F# 6.0 features (link, link)
• Adapt to new record syntax for various syntax types in FCS API (link, link, link, link, link, link, link, link, link, link, link, link, link)
• Handle new syntax cases for dot lambda expressions, intersection types, and while bang expressions in AST walking and error checking functions (src/FsAutoComplete.Core/UntypedAstUtils.fs, src/FsAutoComplete.Core/FCSPatches.fs) (link, link, link, link, link)
• Pass source file kind argument to FSharpSourceTokenizer as required by new FCS API (src/FsAutoComplete.Core/Lexer.fs) (link)
• Use setter symbol instead of getter symbol for property signature data (src/FsAutoComplete.Core/ParseAndCheckResults.fs) (link)
• Assign priority to suggested name completion items (src/FsAutoComplete.Core/ParseAndCheckResults.fs) (link)
• Remove cases for deprecated char range patterns in union case generation and matching functions (src/FsAutoComplete.Core/UnionPatternMatchCaseGenerator.fs) (link, link)
• Remove local variables for checking extension and alias types, as FCS API handles this internally (src/FsAutoComplete.Core/UntypedAstUtils.fs) (link, link, link, link)
• Add unit value to namespace declaration case in AST walking function (src/FsAutoComplete.Core/UntypedAstUtils.fs) (link)
• Add empty line to the end of file (src/FsAutoComplete.Core/UntypedAstUtils.fs) (link)
• Update diagnostic codes for missing equals in type definitions and missing dependency manager, as part of F# 6.0 error code renumbering (src/FsAutoComplete/CodeFixes/AddMissingEqualsToTypeDefinition.fs, test/FsAutoComplete.Tests.Lsp/CodeFixTests/Tests.fs, test/FsAutoComplete.Tests.Lsp/ScriptTests.fs) (link, link, link, link)

[baronfel]

@nojaf you beautiful, wonderful, AMAZING human! I was struggling for so long trying to find that root cause.

Let's merge this thing!

[baronfel]

Have to make a merge commit because we're merging the nightly branch in and I don't want future nightly -> main merges to lose history.