llvm-project/clang/test/Modules/redecl-merge2.m

// RUN: rm -rf %t
// RUN: %clang_cc1 -fmodules -fmodules-cache-path=%t -I %S/Inputs %s -verify -Wno-objc-root-class
// expected-no-diagnostics

@import redecl_merge_bottom.prefix;

DeclaredThenLoaded *dtl;
[Modules] Cope better with top-level declarations loaded after being declared in the current translation unit <rdar://problem/13189985>. These two related tweaks to keep the information associated with a given identifier correct when the identifier has been given some top-level information (say, a top-level declaration) and more information is then loaded from a module. The first ensures that an identifier that was "interesting" before being loaded from an AST is considered to be different from its on-disk counterpart. Otherwise, we lose such changes when writing the current translation unit as a module. Second, teach the code that injects AST-loaded names into the identifier chain for name lookup to keep the most recent declaration, so that we don't end up confusing our declaration chains by having a different declaration in there. llvm-svn: 174895 2013-02-12 02:16:18 +08:00			`// RUN: rm -rf %t`
			`// RUN: %clang_cc1 -fmodules -fmodules-cache-path=%t -I %S/Inputs %s -verify -Wno-objc-root-class`
			`// expected-no-diagnostics`

			`@import redecl_merge_bottom.prefix;`

			`DeclaredThenLoaded *dtl;`