[clang] [clang][Index] Use HeuristicResolver in libIndex (PR #125153)

[Younan Zhang via cfe-commits]

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@@ -168,51 +169,33 @@ class BodyIndexer : public RecursiveASTVisitor<BodyIndexer> {
                                     Parent, ParentDC, Roles, Relations, E);
   }
 
-  bool indexDependentReference(
-      const Expr *E, const Type *T, const DeclarationNameInfo &NameInfo,
-      llvm::function_ref<bool(const NamedDecl *ND)> Filter) {
-    if (!T)
-      return true;
-    const TemplateSpecializationType *TST =
-        T->getAs<TemplateSpecializationType>();
-    if (!TST)
-      return true;
-    TemplateName TN = TST->getTemplateName();
-    const ClassTemplateDecl *TD =
-        dyn_cast_or_null<ClassTemplateDecl>(TN.getAsTemplateDecl());
-    if (!TD)
-      return true;
-    CXXRecordDecl *RD = TD->getTemplatedDecl();
-    if (!RD->hasDefinition())
-      return true;
-    RD = RD->getDefinition();
-    std::vector<const NamedDecl *> Symbols =
-        RD->lookupDependentName(NameInfo.getName(), Filter);
+  bool indexDependentReference(const Expr *E, SourceLocation Loc,
+                               std::vector<const NamedDecl *> TargetSymbols) {
     // FIXME: Improve overload handling.
-    if (Symbols.size() != 1)
+    if (TargetSymbols.size() != 1)
       return true;
-    SourceLocation Loc = NameInfo.getLoc();
     if (Loc.isInvalid())
       Loc = E->getBeginLoc();
     SmallVector<SymbolRelation, 4> Relations;
     SymbolRoleSet Roles = getRolesForRef(E, Relations);
-    return IndexCtx.handleReference(Symbols[0], Loc, Parent, ParentDC, Roles,
-                                    Relations, E);
+    return IndexCtx.handleReference(TargetSymbols[0], Loc, Parent, ParentDC,
+                                    Roles, Relations, E);
   }
 
   bool VisitCXXDependentScopeMemberExpr(CXXDependentScopeMemberExpr *E) {
-    const DeclarationNameInfo &Info = E->getMemberNameInfo();
-    return indexDependentReference(
-        E, E->getBaseType().getTypePtrOrNull(), Info,
-        [](const NamedDecl *D) { return D->isCXXInstanceMember(); });
+    auto *Resolver = IndexCtx.getResolver();
+    if (!Resolver)
+      return true;
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zyn0217 wrote:

Yeah, if that is the case, I think I'm contented with an assertion

https://github.com/llvm/llvm-project/pull/125153