Improvements in -X support (#1852)

* #include an absolute path didn't work - because paths were taken to always be relative.

* Added SourceLoc handling for command line parsing.

* Fix typo in debug.

* Fix issue around the DiagnosticSink used in options parsing not having a writer available - by having DiagnosticSink parenting.

* Small rename for clarity.

* WIP extracting command line args for downstream tools.

* Unit tests/bug fixes around extracting args.

* Use DownstreamArgs in the EndToEndCompileRequest

* Passing downstream compiler options downstream.

* Fix issue with endToEndReq being nullptr.

* Fix issue with diagnostics number change.

* Small improvements to how the source line is displayed if it's too long.
Default to 120, as suggested in previous review.

* Make render test use x-args parsing and CommandArgReader.

* Added missing diagnostics.

* More DownstreamArgs to linkage so can be seen by 'components'.
Added dxc-x-arg test.

* Used combination of name and args instead of two Lists, which whilst equivalent was perhaps a little confusing.

* Added documentation for -X support.

* Added test for x-args parsing diagnostic. Improved diagnostic with list of known names.

* Fix issues from merge.

* Fix lookup for -matrix-layout-column-major in render test.

* Remove commented out line.

2 files changed, 15 insertions, 0 deletions

diff --git a/build/visual-studio/render-test-tool/render-test-tool.vcxproj b/build/visual-studio/render-test-tool/render-test-tool.vcxproj
index 1c913b878..9e7b64089 100644
--- a/build/visual-studio/render-test-tool/render-test-tool.vcxproj
+++ b/build/visual-studio/render-test-tool/render-test-tool.vcxproj
@@ -179,6 +179,8 @@
     </PostBuildEvent>
   </ItemDefinitionGroup>
   <ItemGroup>
+    <ClInclude Include="..\..\..\tools\render-test\diagnostic-defs.h" />
+    <ClInclude Include="..\..\..\tools\render-test\diagnostics.h" />
     <ClInclude Include="..\..\..\tools\render-test\options.h" />
     <ClInclude Include="..\..\..\tools\render-test\png-serialize-util.h" />
     <ClInclude Include="..\..\..\tools\render-test\shader-input-layout.h" />
@@ -186,6 +188,7 @@
     <ClInclude Include="..\..\..\tools\render-test\slang-support.h" />
   </ItemGroup>
   <ItemGroup>
+    <ClCompile Include="..\..\..\tools\render-test\diagnostics.cpp" />
     <ClCompile Include="..\..\..\tools\render-test\options.cpp" />
     <ClCompile Include="..\..\..\tools\render-test\png-serialize-util.cpp" />
     <ClCompile Include="..\..\..\tools\render-test\render-test-main.cpp" />
@@ -197,6 +200,9 @@
     <ProjectReference Include="..\core\core.vcxproj">
       <Project>{F9BE7957-8399-899E-0C49-E714FDDD4B65}</Project>
     </ProjectReference>
+    <ProjectReference Include="..\compiler-core\compiler-core.vcxproj">
+      <Project>{12C1E89D-F5D0-41D3-8E8D-FB3F358F8126}</Project>
+    </ProjectReference>
     <ProjectReference Include="..\slang\slang.vcxproj">
       <Project>{DB00DA62-0533-4AFD-B59F-A67D5B3A0808}</Project>
     </ProjectReference>
diff --git a/build/visual-studio/render-test-tool/render-test-tool.vcxproj.filters b/build/visual-studio/render-test-tool/render-test-tool.vcxproj.filters
index cef2cd3b7..689b8846d 100644
--- a/build/visual-studio/render-test-tool/render-test-tool.vcxproj.filters
+++ b/build/visual-studio/render-test-tool/render-test-tool.vcxproj.filters
@@ -9,6 +9,12 @@
     </Filter>
   </ItemGroup>
   <ItemGroup>
+    <ClInclude Include="..\..\..\tools\render-test\diagnostic-defs.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
+    <ClInclude Include="..\..\..\tools\render-test\diagnostics.h">
+      <Filter>Header Files</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\..\tools\render-test\options.h">
       <Filter>Header Files</Filter>
     </ClInclude>
@@ -26,6 +32,9 @@
     </ClInclude>
   </ItemGroup>
   <ItemGroup>
+    <ClCompile Include="..\..\..\tools\render-test\diagnostics.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\..\tools\render-test\options.cpp">
       <Filter>Source Files</Filter>
     </ClCompile>