[AST] Migrate away from PointerUnion::dyn_cast (NFC)

[kazutakahirata]

Note that PointerUnion::dyn_cast has been soft deprecated in
PointerUnion.h:

// FIXME: Replace the uses of is(), get() and dyn_cast() with
// isa, cast and the llvm::dyn_cast

Literal migration would result in dyn_cast_if_present (see the
definition of PointerUnion::dyn_cast), but this patch uses dyn_cast
because we expect U to be nonnull.

[llvmbot]

@llvm/pr-subscribers-clang

Author: Kazu Hirata (kazutakahirata)

Changes

Note that PointerUnion::dyn_cast has been soft deprecated in
PointerUnion.h:

// FIXME: Replace the uses of is(), get() and dyn_cast() with
// isa<T>, cast<T> and the llvm::dyn_cast<T>

Literal migration would result in dyn_cast_if_present (see the
definition of PointerUnion::dyn_cast), but this patch uses dyn_cast
because we expect U to be nonnull.

---

Full diff: https://github.com/llvm/llvm-project/pull/124433.diff

1 Files Affected:

• (modified) clang/lib/AST/ParentMapContext.cpp (+2-2)

diff --git a/clang/lib/AST/ParentMapContext.cpp b/clang/lib/AST/ParentMapContext.cpp
index af7d9fcdc638be..7ff492443031dc 100644
--- a/clang/lib/AST/ParentMapContext.cpp
+++ b/clang/lib/AST/ParentMapContext.cpp
@@ -103,9 +103,9 @@ class ParentMapContext::ParentMap {
 
   static DynTypedNode
   getSingleDynTypedNodeFromParentMap(ParentMapPointers::mapped_type U) {
-    if (const auto *D = U.dyn_cast<const Decl *>())
+    if (const auto *D = dyn_cast<const Decl *>(U))
       return DynTypedNode::create(*D);
-    if (const auto *S = U.dyn_cast<const Stmt *>())
+    if (const auto *S = dyn_cast<const Stmt *>(U))
       return DynTypedNode::create(*S);
     return *cast<DynTypedNode *>(U);
   }