Rename /nullability_verification to /nullability in preparation for adding/relocating inference functionality here.

PiperOrigin-RevId: 528495113
diff --git a/nullability/pointer_nullability_matchers.h b/nullability/pointer_nullability_matchers.h
new file mode 100644
index 0000000..353bbe8
--- /dev/null
+++ b/nullability/pointer_nullability_matchers.h
@@ -0,0 +1,32 @@
+// Part of the Crubit project, under the Apache License v2.0 with LLVM
+// Exceptions. See /LICENSE for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
+#ifndef CRUBIT_NULLABILITY_POINTER_NULLABILITY_MATCHERS_H_
+#define CRUBIT_NULLABILITY_POINTER_NULLABILITY_MATCHERS_H_
+
+#include "clang/ASTMatchers/ASTMatchersInternal.h"
+
+namespace clang {
+namespace tidy {
+namespace nullability {
+
+ast_matchers::internal::Matcher<Stmt> isPointerExpr();
+ast_matchers::internal::Matcher<Stmt> isMemberOfPointerType();
+ast_matchers::internal::Matcher<Stmt> isPointerArrow();
+ast_matchers::internal::Matcher<Stmt> isCXXThisExpr();
+ast_matchers::internal::Matcher<Stmt> isNullPointerLiteral();
+ast_matchers::internal::Matcher<Stmt> isAddrOf();
+ast_matchers::internal::Matcher<Stmt> isPointerDereference();
+ast_matchers::internal::Matcher<Stmt> isPointerCheckBinOp();
+ast_matchers::internal::Matcher<Stmt> isImplicitCastPointerToBool();
+ast_matchers::internal::Matcher<Stmt> isCallExpr();
+ast_matchers::internal::Matcher<Stmt> isPointerReturn();
+ast_matchers::internal::Matcher<Stmt> isConstructExpr();
+ast_matchers::internal::Matcher<CXXCtorInitializer> isCtorMemberInitializer();
+
+}  // namespace nullability
+}  // namespace tidy
+}  // namespace clang
+
+#endif  // CRUBIT_NULLABILITY_POINTER_NULLABILITY_MATCHERS_H_