[llvm] [SPIRV] Extend NSDI debug handling for DebugTypeFunction. (PR #197003)

[Diego Novillo via llvm-commits]

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@@ -40,9 +41,10 @@ class SPIRVSubtarget;
 /// Call sequence:
 ///   beginModule()                    -- collect compile-unit metadata.
 ///   prepareModuleOutput()            -- add extension + ext inst set to MAI.
-///   emitNonSemanticGlobalDebugInfo() -- emit DebugSource,
-///                                       DebugCompilationUnit, DebugTypeBasic,
-///                                       DebugTypePointer.
+///   emitNonSemanticDebugStrings()    -- OpString for NSDI strings (sec. 7).
+///   emitNonSemanticGlobalDebugInfo() -- emit DebugSource, DebugTypeBasic,
+///                                       DebugTypePointer, DebugTypeFunction,
+///                                       DebugCompilationUnit.
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dnovillo wrote:

comment nit: `DebugCompilationUnit` is actually before `DebugTypeBasic`, I believe.

https://github.com/llvm/llvm-project/pull/197003