[clang] [clang-tools-extra] [clang-tidy] Fix FP in misc-const-correctness (PR #206515)

[Yanzuo Liu via cfe-commits]

================
@@ -160,6 +160,13 @@ class ExprPointeeResolve {
         if (CastType == SubExprType)
           return resolveExpr(ICE->getSubExpr());
       }
+      if (kind == CK_BitCast) {
+        const QualType DestType = ICE->getType();
+        const QualType SubExprType = ICE->getSubExpr()->getType();
+        if (DestType->isPointerType() && SubExprType->isPointerType() &&
+            !DestType->getPointeeType().isConstQualified())
----------------
zwuis wrote:

Are these conditions necessary? (Looking at the function name `resolveExpr`)

https://github.com/llvm/llvm-project/pull/206515