Cherry-pick PRs from main to release/5.9

[ahoppen]

This cherry-picks the following PRs to release/5.9, effectively bringing release/5.9 up-to-date with main

• Only output number of executed instructions in swift-parser-cli on macOS #1462
  • Only modifies a test utility that is not part of the toolchain, so very low risk and useful to trace performance problems
• Fix multiple cases where the parser produced token kinds that didn’t match the token kinds in the syntax node definitions #1436
  • This fixes minor parsing bugs found by #1339, so we should take it into 5.9
• Add space on leading and trailing equal #1456
  • Fixes a known bug that we previously allows = with unbalanced whitespace
• Remove check for endOfFile in advance #1457
  • Cleanup with a slight performance boost that is needed for regex lexing
• Parse versions as three integer tokens #1440
  • Generally improves our structure to represent versions in the SwiftSyntax tree. I wouldn’t want to ship 5.9 with the old representation where a float was used to represent the major and minor version. Also fixes a parser bug where we would expect arbitrary float literals (like 1.0e2 for the major version) and hex integer literals for the patch version
• [Macros] Support code item macro expansion #1442
  • Needed for macros AFAICT
• Add diagnostic for comparison in default value #1445
  • Low risk, improves diagnostics
• Fix warning in code gen #1422
  • Fixes an issue that we had the wrong code-generated files checked in
• Add missing diagnostic for missing brace or if after else #1444
  • Low risk, improves diagnostics
• If no explicit highlight range was given, highlight the node the diagnostic is anchored at instead of highlighting nothing #1441
  • Improves what will be highlighted in a diagnostic from a single character to an entire token. Dramatically improves how the highlight looks IMO.
• Add diagnostic message for identifier editor placeholder #1380
  • We weren’t diagnosing editor placeholders as error. That was bad. This fixes it.
• Add missing switch & for-each expression and while & if condition error #1429
  • Low risk, improve diagnostics
• Add missing CMakeLists.txt exclude #1435
  • Fixes a build-time warning about a non-excluded CMakeLists.txt. Super-low risk
• Add a conditional compilation flag to verify token choices #1339
  • All the code added by this is behind #if and makes cherry-picking a lot easier because this touches a lot. Thus, low risk
• Replace assert by precondition in most places #1427
  • If we are not willing to enable these assertions (or after this PR preconditions) now, I think we will never have the guts to do so. So let’s get it in now while we still have time until the real release.
• Enable assertions in Release+Assert builds of earlyswiftsyntax #1432
  • Similar to above, we should enable these assertions for 5.9. Also this is lower risk because it only affects Release+Assert builds, not plain release builds.

[ahoppen]

@swift-ci Please test

[kimdv]

To the editor placeholder we also need to cherry pick in the swift repo. If that also have a 5.9 branch

[ahoppen]

swiftlang/swift#64805

@swift-ci Please test

[ahoppen]

To the editor placeholder we also need to cherry pick in the swift repo. If that also have a 5.9 branch

Thanks for keeping track of things. I forgot about that. I opened swiftlang/swift#64805.

[ahoppen]

swiftlang/swift#64805

@swift-ci Please test macOS