Fix missing debug info for the included slang file (#7281)

* Fix missing debug info in the included slang file

Issue:
https://github.com/shader-slang/slang/issues/7271

Debug info including DebugFunction, DebugLocation, and DebugValue
are missing in IR for "#included" Slang shader file.

The included shader file was not added to TranslationUnit's source
file list, therefore mapSourceFileToDebugSourceInst.add() was not
called for the source in generateIRForTranslationUnit(), and later
mapSourceFileToDebugSourceInst.tryGetValue() could not get value
for the source to add DebugLocationDecoration, which led to missing
DebugFunction, DebugLocation and other debug info for the included
file in IR.

Adding the include file in TranslationUnit's source file list fixes
the issue.

* Add source file using PreprocessorHandler

Call _addSourceFile from FrontEndPreprocessorHandler::handleFileDependency.

* Just use FrontEndPreprocessorHandler

* Make _addSourceFile public

* format code

* Distingush the included source file

* Add m_includedFileSet to avoid adding dup file

HashSet<SourceFile*> m_includedFileSet;

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Co-authored-by: ArielG-NV <159081215+ArielG-NV@users.noreply.github.com>
Co-authored-by: slangbot <186143334+slangbot@users.noreply.github.com>

0 files changed, 0 insertions, 0 deletions