[llvm] [VFABI] Improve VFABI unit tests (PR #73907)

[Paschalis Mpeis via llvm-commits]

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@@ -61,40 +61,31 @@ class VFABIParserTest : public ::testing::Test {
   // use to create the function in the module if it differs from the
   // standard mangled name.
   //
-  // \p IRType -> FunctionType string to be used for the signature of
+  // \p STy -> FunctionType string to be used for the signature of
   // the vector function.  The correct signature is needed by the
   // parser only for scalable functions. For the sake of testing, the
   // generic fixed-length case can use as signature `void()`.
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paschalis-mpeis wrote:

#76855 addresses this.

https://github.com/llvm/llvm-project/pull/73907