[Bounds Safety][NFC] Add some missing coverage for -fexperimental-late-parse-attributes (#102236)

Previously we weren't properly checking that using
`-fexperimental-late-parse-attributes` worked on source code that didn't
need late parsing.

For example we weren't testing that the attribute appearing in the type
position generated the right AST with
`-fexperimental-late-parse-attributes` off.

This patch adds additional `RUN` lines to re-run the relevant test cases
with `-fexperimental-late-parse-attributes` enabled.

rdar://133325597

Author: delcypher

clang/test/AST/attr-counted-by-or-null-struct-ptrs.c

@@ -1,4 +1,5 @@
 // RUN: %clang_cc1 %s -ast-dump | FileCheck %s
+// RUN: %clang_cc1 -fexperimental-late-parse-attributes %s -ast-dump | FileCheck %s
 
 #define __counted_by_or_null(f)  __attribute__((counted_by_or_null(f)))
 

clang/test/AST/attr-counted-by-struct-ptrs.c

@@ -1,4 +1,5 @@
 // RUN: %clang_cc1 %s -ast-dump | FileCheck %s
+// RUN: %clang_cc1 -fexperimental-late-parse-attributes %s -ast-dump | FileCheck %s
 
 #define __counted_by(f)  __attribute__((counted_by(f)))
 

clang/test/AST/attr-sized-by-or-null-struct-ptrs.c

@@ -1,4 +1,5 @@
 // RUN: %clang_cc1 %s -ast-dump | FileCheck %s
+// RUN: %clang_cc1 -fexperimental-late-parse-attributes %s -ast-dump | FileCheck %s
 
 #define __sized_by_or_null(f)  __attribute__((sized_by_or_null(f)))
 

clang/test/AST/attr-sized-by-struct-ptrs.c

@@ -1,4 +1,5 @@
 // RUN: %clang_cc1 %s -ast-dump | FileCheck %s
+// RUN: %clang_cc1 -fexperimental-late-parse-attributes %s -ast-dump | FileCheck %s
 
 #define __sized_by(f)  __attribute__((sized_by(f)))
 

clang/test/Sema/attr-counted-by-bounds-safety-vlas.c

@@ -1,4 +1,5 @@
 // RUN: %clang_cc1 -fsyntax-only -fexperimental-bounds-safety -verify %s
+// RUN: %clang_cc1 -fsyntax-only -fexperimental-bounds-safety -fexperimental-late-parse-attributes -verify %s
 //
 // This is a portion of the `attr-counted-by-vla.c` test but is checked
 // under the semantics of `-fexperimental-bounds-safety` which has different

clang/test/Sema/attr-counted-by-or-null-last-field.c

@@ -1,4 +1,5 @@
-// RUN: %clang_cc1 -fsyntax-only -verify %s
+// RUN: %clang_cc1 -fsyntax-only -verify=expected,immediate %s
+// RUN: %clang_cc1 -fsyntax-only -fexperimental-late-parse-attributes -verify=expected,late %s
 
 #define __counted_by_or_null(f)  __attribute__((counted_by_or_null(f)))
 
@@ -82,7 +83,9 @@ struct found_outside_of_struct {
 
 struct self_referrential {
   int bork;
-  struct bar *self[] __counted_by_or_null(self); // expected-error {{use of undeclared identifier 'self'}}
+  // immediate-error@+2{{use of undeclared identifier 'self'}}
+  // late-error@+1{{'counted_by_or_null' only applies to pointers; did you mean to use 'counted_by'?}}
+  struct bar *self[] __counted_by_or_null(self);
 };
 
 struct non_int_count {

clang/test/Sema/attr-counted-by-or-null-struct-ptrs-sizeless-types.c

@@ -1,5 +1,6 @@
 // __SVInt8_t is specific to ARM64 so specify that in the target triple
 // RUN: %clang_cc1 -triple arm64-apple-darwin -fsyntax-only -verify %s
+// RUN: %clang_cc1 -fexperimental-late-parse-attributes -triple arm64-apple-darwin -fsyntax-only -verify %s
 
 #define __counted_by_or_null(f)  __attribute__((counted_by_or_null(f)))
 

clang/test/Sema/attr-counted-by-or-null-struct-ptrs.c

@@ -1,4 +1,5 @@
 // RUN: %clang_cc1 -fsyntax-only -verify %s
+// RUN: %clang_cc1 -fexperimental-late-parse-attributes -fsyntax-only -verify %s
 
 #define __counted_by_or_null(f)  __attribute__((counted_by_or_null(f)))
 #define __counted_by(f)  __attribute__((counted_by(f)))

clang/test/Sema/attr-counted-by-or-null-vla-sizeless-types.c

@@ -1,5 +1,6 @@
 // __SVInt8_t is specific to ARM64 so specify that in the target triple
 // RUN: %clang_cc1 -triple arm64-apple-darwin -fsyntax-only -verify %s
+// RUN: %clang_cc1 -fexperimental-late-parse-attributes -triple arm64-apple-darwin -fsyntax-only -verify %s
 
 #define __counted_by_or_null(f)  __attribute__((counted_by_or_null(f)))
 

clang/test/Sema/attr-counted-by-struct-ptrs-sizeless-types.c

@@ -1,5 +1,6 @@
 // __SVInt8_t is specific to ARM64 so specify that in the target triple
 // RUN: %clang_cc1 -triple arm64-apple-darwin -fsyntax-only -verify %s
+// RUN: %clang_cc1 -fexperimental-late-parse-attributes -triple arm64-apple-darwin -fsyntax-only -verify %s
 
 #define __counted_by(f)  __attribute__((counted_by(f)))