v1.3.1

1. Enhancements

IEx

• [IEx.Helpers] Add import_file_if_available for importing files only if they are available
• [IEx.Helpers] Add import_if_available for importing modules only if they are available

2. Bug fixes

Elixir

• [Kernel] Ensure structs can be expanded in dynamic module names
• [Kernel] Ensure aliases warnings are not accidentally discarded when the same module is imported
• [Kernel.ParallelCompiler] Ensure two modules with cyclic struct dependencies cannot run into a deadlock when compiling
• [Kernel.Typespec] Support module attributes in remote types
• [Module] Do not expect stacktraces to be always present when dispatching to locals during the module compilation

IEx

• [IEx.Helpers] Fix h helper for operators

Mix

• [Mix] Do not load modules for xref purposes, instead use BEAM info
• [Mix] Ensure deps.check does not check archives (that's done in loadpaths)
• [Mix] Validate application properties before traversing them
• [Mix] Check for proper Makefile when compiling on Windows
• [Mix] Enforce space after comma in mix do