[clang] [NFC] Remove unneeded forward declaration of diagnoseUncapturableValueReferenceOrBinding() (PR #154591)

[Tom Honermann via cfe-commits]

https://github.com/tahonermann created https://github.com/llvm/llvm-project/pull/154591

The only (remaining) use of this forward declaration was removed in
commit 127bf44385424891eb04cff8e52d3f157fc2cb7c.

>From a35c111162390074972fe272bc4f0f2a82da5b65 Mon Sep 17 00:00:00 2001
From: Tom Honermann <tom.honermann at intel.com>
Date: Fri, 31 May 2024 13:15:47 -0700
Subject: [PATCH] [NFC] Remove unneeded forward declaration of
 diagnoseUncapturableValueReferenceOrBinding().

---
 clang/lib/Sema/SemaExpr.cpp | 9 +++------
 1 file changed, 3 insertions(+), 6 deletions(-)

diff --git a/clang/lib/Sema/SemaExpr.cpp b/clang/lib/Sema/SemaExpr.cpp
index dcd70e6769e23..911c80adfd539 100644
--- a/clang/lib/Sema/SemaExpr.cpp
+++ b/clang/lib/Sema/SemaExpr.cpp
@@ -3255,10 +3255,6 @@ ExprResult Sema::BuildDeclarationNameExpr(const CXXScopeSpec &SS,
   return ULE;
 }
 
-static void diagnoseUncapturableValueReferenceOrBinding(Sema &S,
-                                                        SourceLocation loc,
-                                                        ValueDecl *var);
-
 ExprResult Sema::BuildDeclarationNameExpr(
     const CXXScopeSpec &SS, const DeclarationNameInfo &NameInfo, NamedDecl *D,
     NamedDecl *FoundD, const TemplateArgumentListInfo *TemplateArgs,
@@ -18659,8 +18655,9 @@ void Sema::MarkCaptureUsedInEnclosingContext(ValueDecl *Capture,
   MarkVarDeclODRUsed(Capture, Loc, *this, &CapturingScopeIndex);
 }
 
-void diagnoseUncapturableValueReferenceOrBinding(Sema &S, SourceLocation loc,
-                                                 ValueDecl *var) {
+static void diagnoseUncapturableValueReferenceOrBinding(Sema &S,
+                                                        SourceLocation loc,
+                                                        ValueDecl *var) {
   DeclContext *VarDC = var->getDeclContext();
 
   //  If the parameter still belongs to the translation unit, then