Introduce CXXRecordDecl::isCLike() that is true if the class is C-like,
without C++-specific features.

Use it to set the language to C++ when indexing non-C-like structs.
rdar://10732579

llvm-svn: 148708
diff --git a/clang/tools/libclang/IndexingContext.cpp b/clang/tools/libclang/IndexingContext.cpp
index 3d70144..a124cbd 100644
--- a/clang/tools/libclang/IndexingContext.cpp
+++ b/clang/tools/libclang/IndexingContext.cpp
@@ -814,12 +814,9 @@
       EntityInfo.kind = CXIdxEntity_Enum; break;
     }
 
-    if (const CXXRecordDecl *CXXRec = dyn_cast<CXXRecordDecl>(D)) {
-      // FIXME: isPOD check is not sufficient, a POD can contain methods,
-      // we want a isCStructLike check.
-      if (CXXRec->hasDefinition() && !CXXRec->isPOD())
+    if (const CXXRecordDecl *CXXRec = dyn_cast<CXXRecordDecl>(D))
+      if (!CXXRec->isCLike())
         EntityInfo.lang = CXIdxEntityLang_CXX;
-    }
 
     if (isa<ClassTemplatePartialSpecializationDecl>(D)) {
       EntityInfo.templateKind = CXIdxEntity_TemplatePartialSpecialization;