IDownstreamCompiler interface (#2361)

* WIP with hierarchical enums.

* Some small fixes and improvements around artifact desc related types.

* Improvements around hierarchical enum.

* Fixes to get Artifact types refactor to be able to execute tests.

* Attempt to better categorize PTX.

* Work around for potentially unused function warning.

* Typo fix.

* Simplify Artifact header.

* Small improvements around Artifact kind/payload/style.

* Added IDestroyable/ICastable

* Add IArtifactList.

* First impl of IArtifactUtil.

* Use the ICastable interface for IArtifactRepresentation.

* Added IArtifactRepresentation & IArtifactAssociated.

* Add SLANG_OVERRIDE to avoid gcc/clang warning.

* Fix calling convention issue on win32.

* Fix missing SLANG_OVERRIDE.

* First attempt at file abstraction around Artifact.

* Added creation of lock file.

* Move functionality for determining file paths to the IArtifactUtil.
Add casting to ICastable.

* Added some casting/finding mechanisms.

* Simplify IArtifact interface, and use Items for file reps.

* Fix problem with libraries on DXIL.

* Split out ArtifactRepresentation.

* Move ArtifactDesc functionality to ArtifactDescUtil. ArtifactInfoUtil becomes ArtifactDescUtil.

* Split implementations from the interfaces for Artifact.

* Use TypeTextUtil for target name outputting.

* Add artifact impls.

* Add ICastableList

* Added UnknownCastableAdapter

* Make ISlangSharedLibrary derive from ICastable, and remain backwards compatible with slang-llvm.

* Refactor Representation on Artifact.

* Make our ISlangBlobs also derive from ICastable.
Make ISlangBlob atomic ref counted.

* Split out CastableList and related types, and placed in core.

* Small fixes around IArtifact.
Improve IArtifact docs.
First impl of getChildren for IArtifact.

* Documentation improvements for Artifact related types.

* Fix typo.

* Special case adding a ICastableList to a LazyCastableList.

* Small simplification of LazyCastableList, by adding State member.

* Removed the ILockFile interface because IFileArtifactRepresentation can be used.

* Implement DiagnosticsArtifactRepresentation.

* Added PostEmitMetadataArtifactRepresentation

* Add searching by predicate.
Added handling of accessing Artifact as ISharedLibrary

* Fix typo.

* Add find to IArtifacgtList.
Fix some missing SLANG_NO_THROW.

* Small improvements around ArtifactDesc types.

* Another small change around ArtifactKind.

* Some more shuffling of ArtifactDesc.

* Make IArtifact castable
Remove IArtifactList
Made IArtifactContainer derive from IArtifact
Made ModuleLibrary atomic ref counted/given IModuleLibrary interface.

* Must call _requireChildren before any children access.

* Fix missing SLANG_MCALL on castAs.

* Fix missing SLANG_OVERRIDE.

* Added IArtifactHandler

* Use ICastable for basis of scope/lookup.

* WIP first attempt to remove CompileResult.

* Fix support for for downstream compiler shared library adapter.

* Fix issues found when replacing CompileResult.

* Fix typo.

* Fix getting items form 'significant' member of an Artifact.

* Split out ArtifactUtil & ArtifactHandler.

* Work around for problem on Visual studio.

* Improve searching.

* Add missing files.

* Split out Artifact associated types.
Don't produce a container by default - use associated for 'metadata'.

* Remove no longer used ArtifactPayload type.

* Generalized converting representations.
Small improvements to artifacts.

* Fix intermediate dumping issue.

* Removed #if 0 out CompileResult.
Remove DownstreamCompileResult maybeDumpIntermediate.

* Pull out functionality for dumping artifact output into ArtifactOutputUtil
Fixed a bug in naming files based on ArtifactDesc.

* std::atomic issue.

* Pull out types from DownstreamCompile to simplify moving to an interface.

* Fix typo.

* Use IDownstreamCompiler interface.
Split out DownstreamCompilerUtil and DownstreamCompilerSet.

* Update projects.

* Fix missing SLANG_MCALL.

* Fix calling convention of IDownstreamCompiler impls.

* Split out binary work arounds into a dep1.cpp/h

* Small reorganising around DownstreamCompilerInfo.

* Remove Desc library functionality to DownstreamCompilerUtil.

* Expand IDiagnostics interface.
Rename associated impls with Impl suffix.

* Fix outputting as text bug.
Some small improvements.

* Add fix around prefix for dumping.
Improved how handling for extensions work form ArtifactDesc.

* Dump assembly if available.

* Simplify some of Dep1 definitions.

2 files changed, 24 insertions, 0 deletions

diff --git a/build/visual-studio/compiler-core/compiler-core.vcxproj b/build/visual-studio/compiler-core/compiler-core.vcxproj
index cca9b23cf..ba0ddde88 100644
--- a/build/visual-studio/compiler-core/compiler-core.vcxproj
+++ b/build/visual-studio/compiler-core/compiler-core.vcxproj
@@ -288,7 +288,10 @@
     <ClInclude Include="..\..\..\source\compiler-core\slang-core-diagnostics.h" />

     <ClInclude Include="..\..\..\source\compiler-core\slang-diagnostic-sink.h" />

     <ClInclude Include="..\..\..\source\compiler-core\slang-doc-extractor.h" />

+    <ClInclude Include="..\..\..\source\compiler-core\slang-downstream-compiler-set.h" />

+    <ClInclude Include="..\..\..\source\compiler-core\slang-downstream-compiler-util.h" />

     <ClInclude Include="..\..\..\source\compiler-core\slang-downstream-compiler.h" />

+    <ClInclude Include="..\..\..\source\compiler-core\slang-downstream-dep1.h" />

     <ClInclude Include="..\..\..\source\compiler-core\slang-dxc-compiler.h" />

     <ClInclude Include="..\..\..\source\compiler-core\slang-fxc-compiler.h" />

     <ClInclude Include="..\..\..\source\compiler-core\slang-gcc-compiler-util.h" />

@@ -329,7 +332,10 @@
     <ClCompile Include="..\..\..\source\compiler-core\slang-core-diagnostics.cpp" />

     <ClCompile Include="..\..\..\source\compiler-core\slang-diagnostic-sink.cpp" />

     <ClCompile Include="..\..\..\source\compiler-core\slang-doc-extractor.cpp" />

+    <ClCompile Include="..\..\..\source\compiler-core\slang-downstream-compiler-set.cpp" />

+    <ClCompile Include="..\..\..\source\compiler-core\slang-downstream-compiler-util.cpp" />

     <ClCompile Include="..\..\..\source\compiler-core\slang-downstream-compiler.cpp" />

+    <ClCompile Include="..\..\..\source\compiler-core\slang-downstream-dep1.cpp" />

     <ClCompile Include="..\..\..\source\compiler-core\slang-dxc-compiler.cpp" />

     <ClCompile Include="..\..\..\source\compiler-core\slang-fxc-compiler.cpp" />

     <ClCompile Include="..\..\..\source\compiler-core\slang-gcc-compiler-util.cpp" />

diff --git a/build/visual-studio/compiler-core/compiler-core.vcxproj.filters b/build/visual-studio/compiler-core/compiler-core.vcxproj.filters
index 071624488..a2b1dadc7 100644
--- a/build/visual-studio/compiler-core/compiler-core.vcxproj.filters
+++ b/build/visual-studio/compiler-core/compiler-core.vcxproj.filters
@@ -51,9 +51,18 @@
     <ClInclude Include="..\..\..\source\compiler-core\slang-doc-extractor.h">

       <Filter>Header Files</Filter>

     </ClInclude>

+    <ClInclude Include="..\..\..\source\compiler-core\slang-downstream-compiler-set.h">

+      <Filter>Header Files</Filter>

+    </ClInclude>

+    <ClInclude Include="..\..\..\source\compiler-core\slang-downstream-compiler-util.h">

+      <Filter>Header Files</Filter>

+    </ClInclude>

     <ClInclude Include="..\..\..\source\compiler-core\slang-downstream-compiler.h">

       <Filter>Header Files</Filter>

     </ClInclude>

+    <ClInclude Include="..\..\..\source\compiler-core\slang-downstream-dep1.h">

+      <Filter>Header Files</Filter>

+    </ClInclude>

     <ClInclude Include="..\..\..\source\compiler-core\slang-dxc-compiler.h">

       <Filter>Header Files</Filter>

     </ClInclude>

@@ -170,9 +179,18 @@
     <ClCompile Include="..\..\..\source\compiler-core\slang-doc-extractor.cpp">

       <Filter>Source Files</Filter>

     </ClCompile>

+    <ClCompile Include="..\..\..\source\compiler-core\slang-downstream-compiler-set.cpp">

+      <Filter>Source Files</Filter>

+    </ClCompile>

+    <ClCompile Include="..\..\..\source\compiler-core\slang-downstream-compiler-util.cpp">

+      <Filter>Source Files</Filter>

+    </ClCompile>

     <ClCompile Include="..\..\..\source\compiler-core\slang-downstream-compiler.cpp">

       <Filter>Source Files</Filter>

     </ClCompile>

+    <ClCompile Include="..\..\..\source\compiler-core\slang-downstream-dep1.cpp">

+      <Filter>Source Files</Filter>

+    </ClCompile>

     <ClCompile Include="..\..\..\source\compiler-core\slang-dxc-compiler.cpp">

       <Filter>Source Files</Filter>

     </ClCompile>