Scala

What's new in this version:

Release highlights:
- Add support for local coverage on and off with // $COVERAGE-OFF$ and // $COVERAGE-ON$
- Deprecate for removal -print-lines compiler setting
- Add safe mode capture checking extension
- Port the Scala2 JVM backend optimizer

Other changes and fixes:
Desugaring:
- Fix

Documentation:
- Fix little errors in the API documentation
- CC Language Reference: Rename cap to any/fresh

Enums:
- Deprecate override class, improve checks
- Fix Java enum forwarders to pull from companion on initialization
- Experimental: Capture Checking:
- Rename caps.cap to caps.any
- Track global capabilities
- Treat local mutable vars as capabilities
- Fix Crashes when Capture-set Parameters Conflict with Terms
- Replace "cannot be included in" by "cannot flow into" in error messages
- CC: Add field captures to self-type constraints
- Add uses clauses for templates
- Drop special code paths for objects
- Do not consider generated getters to be update def
- Under cc, mark inferred type arguments to inline methods with an @inferred annotation
- Handle call-by-name types in bad locations under cc
- Fixes for global capabilities
- Warn if reach capability in result will likely cause leakage
- Make <fluid> decorations replace existing capture sets
- Make TypeMaps in Setup work correctly for fresh
- For a limited time, also recognize caps.cap
- Fix closure typing
- Map class capture sets via as-seen-from with prefix of created types
- Drop SafeMode attribute in Tasty
- Fix @assumeSafe addition in safe mode
- Disallow @assumeSafe under safe mode

Experimental: Modularity:
- Fix nested desugaring of applied constructor types

Exports:
- Add ctor proxies before exports

Inline:
- Make containsOuterRefsAnywhere follow aliases
- Find annotation args in inline expansion
- Also substitute symbols in case bindings symbols

JDK:
- Skip over JEP 445 compact compilation units
- Handle MissingType during Erasure phase

JVM Backend:
- Simplify JVM interface list emission, remove a mini-phase
- Don't generate bridge methods for inaccessible Java package-private methods
- Revise isLocalToCompilationUnit
- Enforce JVM UTF-8 string limits in the backend
- Fix class super-call invokespecial owner

Linting:
- Extension check handles hiBound of opaque type
- Distrust tree pos for patvar lint
- Move second CheckUnused after pattern matcher
- Unused lint ignores args to ctor of enclosing class
- Check inline expansion for exclusion

Metaprogramming:
- Fix: Fix incremental compilation of (some unquoted) macros

Named Tuples:
- Don't try checking for ambiguous single-element tuples when in types
- Fix "NamedTuple type in match is parsed as named pattern"
- Fix "Named pattern matching doesn't work in val statements or for generators"
- Fix false exhaustivity warning for pattern returning NamedTuple

Overloading:
- Prefer non-extension to extension

Parser:
- Check seen for TypeParamRef in TypeSizeAccumulator
- End of new expr never shrinks
- Use toVector for XML literal sequences
- Pattern Matching:
- Emit unchecked warnings for trait patterns

Presentation Compiler:
- Bugfix: inline value false-positive shadowing with lambda params
- Test hover on backticked identifiers with whitespace
- Inlining interpolated variables
- Bugfix: treat self types as parent types
- Feat(pc): add closing labels inlay hints
- Coursier dependency imports should have lexicographic ordering
- Bugfix: Fix various minor presentation compiler issues
- Fix negative activeParameter in signature help
- Closes
- Fix opaque types displayed as Nothing & Any in hover and signature help

REPL:
- Skip module-info.class files during REPL tab-completion
- Fix REPL usage of macros loaded via :dep and :jar
- Make REPL type echo-ing use partially qualified names where made possible by imports
- Force REPL to not evaluate LazyList

Reporting:
- Check -Werror on summarize
- Fixes
- Ignore resetting if preferPrevious
- Enhance WInferUnion to not warn propagated explicit union types
- Improve diagnostic message for unnecessary trailing underscore in eta-expansion
- More descriptive "not found" message when type/term exists with the expected term/type name
- Warn on Scala 2 auto-apply if loosely nullary
- Fix printing references to nested objects
- Add error note for type mismatch involving blocks without last expression
- Drop -print-lines option
- Don't suggest invisible members of root imports

Runner:
- Bump Scala CLI to v1.12.3 (was v1.12.2)
- Bump Scala CLI to 1.12.4 (was 1.12.3)

Rewrites:
- Accommodate ArrowAssoc in infix named arg migration

Scaladoc:
- Init MacroClassLoader in scaladoc
- Scaladoc Overload Method Link Fix
- Fix duplicate member entries in Scaladoc generation
- Scaladoc Tests for CC
- Skip generation of API pages when building reference docs
- Docs: Enforce links checks in the generated docs

Scala.js:
- Fix issues in presentation compiler when using Scala JS
- Fix issues with Scala JS and the presentation compiler

Settings:
- Don't enable compact annotations under 2.13.

Standard Library:
- Remove incorrect equals implementations from ArrayBuilder
- Use StringBuilder intead of StringBuffer in Regex
- Update StringOps.* implementation

TASTy format:
- Don't absolutize sources outside of the sourceroot in TASTy

Tooling:
- Fix behavior of -Ydump-sbt-inc

Typer:
- Never widen constant type on selector type in matches
- Preserve insertion order when balancing And/OrType
- Improve ref check of constructors

Quotes:
- Fix