[clang-tidy]mark record initList as non-const param

```
struct XY {
  int *x;
  int *y;
};
void recordInitList(int *x) {
  XY xy = {x, nullptr};
}
```
x cannot be const int* becase it in a initialize list which only accept int*

Reviewed By: PiotrZSL

Differential Revision: https://reviews.llvm.org/D158152

clang-tools-extra/clang-tidy/readability/NonConstParameterCheck.cpp

@@ -103,7 +103,7 @@ void NonConstParameterCheck::check(const MatchFinder::MatchResult &Result) {
   } else if (const auto *VD = Result.Nodes.getNodeAs<VarDecl>("Mark")) {
     const QualType T = VD->getType();
     if ((T->isPointerType() && !T->getPointeeType().isConstQualified()) ||
-        T->isArrayType())
+        T->isArrayType() || T->isRecordType())
       markCanNotBeConst(VD->getInit(), true);
     else if (T->isLValueReferenceType() &&
              !T->getPointeeType().isConstQualified())

clang-tools-extra/docs/ReleaseNotes.rst

@@ -241,6 +241,10 @@ Changes in existing checks
   do-while loops into account for the `AllowIntegerConditions` and
   `AllowPointerConditions` options.
 
+- Improved :doc:`readability-non-const-parameter
+  <clang-tidy/checks/readability/non-const-parameter>` check to ignore
+  false-positives in initializer list of record.
+
 - Improved :doc:`readability-static-accessed-through-instance
   <clang-tidy/checks/readability/static-accessed-through-instance>` check to
   identify calls to static member functions with out-of-class inline definitions.

clang-tools-extra/test/clang-tidy/checkers/readability/non-const-parameter.cpp

@@ -222,6 +222,24 @@ struct XY {
 void recordpointer(struct XY *xy) {
   *(xy->x) = 0;
 }
+void recordInitList(int *x) {
+  XY xy = {x, nullptr};
+}
+
+struct XYConst {
+  int const *x;
+};
+// CHECK-MESSAGES: :[[@LINE+1]]:30: warning: pointer parameter 'x' can be pointer to const
+void recordInitListDiag(int *x) {
+  // CHECK-FIXES: {{^}}void recordInitListDiag(const int *x) {{{$}}
+  XYConst xy = {x};
+}
+typedef XYConst XYConstAlias;
+// CHECK-MESSAGES: :[[@LINE+1]]:35: warning: pointer parameter 'x' can be pointer to const
+void recordInitListAliasDiag(int *x) {
+  // CHECK-FIXES: {{^}}void recordInitListAliasDiag(const int *x) {{{$}}
+  XYConstAlias xy = {x};
+}
 
 class C {
 public: