[ASTImporter] Convert ODR diagnostics inside ASTImporter implementation

Summary:
ASTStructuralEquivalence uses a flag to indicate whether ODR diagnostics
should be considered errors or warnings as module Sema is more strict than
ASTMerge. The implementation of ASTImporter should allso follow
along the same lines.

Reviewers: martong, a.sidorin, shafik, a_sidorin

Reviewed By: shafik, a_sidorin

Subscribers: rnkovacs, martong, dkrupp, Szelethus, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D59761

Patch by Endre Fulop!

llvm-svn: 357402
diff --git a/clang/lib/AST/ASTImporter.cpp b/clang/lib/AST/ASTImporter.cpp
index 6048296..f1da65d 100644
--- a/clang/lib/AST/ASTImporter.cpp
+++ b/clang/lib/AST/ASTImporter.cpp
@@ -2961,7 +2961,7 @@
           continue;
 
         // Complain about inconsistent function types.
-        Importer.ToDiag(Loc, diag::err_odr_function_type_inconsistent)
+        Importer.ToDiag(Loc, diag::warn_odr_function_type_inconsistent)
             << Name << D->getType() << FoundFunction->getType();
         Importer.ToDiag(FoundFunction->getLocation(), diag::note_odr_value_here)
             << FoundFunction->getType();
@@ -3265,7 +3265,7 @@
       }
 
       // FIXME: Why is this case not handled with calling HandleNameConflict?
-      Importer.ToDiag(Loc, diag::err_odr_field_type_inconsistent)
+      Importer.ToDiag(Loc, diag::warn_odr_field_type_inconsistent)
         << Name << D->getType() << FoundField->getType();
       Importer.ToDiag(FoundField->getLocation(), diag::note_odr_value_here)
         << FoundField->getType();
@@ -3336,7 +3336,7 @@
         continue;
 
       // FIXME: Why is this case not handled with calling HandleNameConflict?
-      Importer.ToDiag(Loc, diag::err_odr_field_type_inconsistent)
+      Importer.ToDiag(Loc, diag::warn_odr_field_type_inconsistent)
         << Name << D->getType() << FoundField->getType();
       Importer.ToDiag(FoundField->getLocation(), diag::note_odr_value_here)
         << FoundField->getType();
@@ -3467,7 +3467,7 @@
         return FoundIvar;
       }
 
-      Importer.ToDiag(Loc, diag::err_odr_ivar_type_inconsistent)
+      Importer.ToDiag(Loc, diag::warn_odr_ivar_type_inconsistent)
         << Name << D->getType() << FoundIvar->getType();
       Importer.ToDiag(FoundIvar->getLocation(), diag::note_odr_value_here)
         << FoundIvar->getType();
@@ -3580,7 +3580,7 @@
           }
         }
 
-        Importer.ToDiag(Loc, diag::err_odr_variable_type_inconsistent)
+        Importer.ToDiag(Loc, diag::warn_odr_variable_type_inconsistent)
           << Name << D->getType() << FoundVar->getType();
         Importer.ToDiag(FoundVar->getLocation(), diag::note_odr_value_here)
           << FoundVar->getType();
@@ -3745,7 +3745,7 @@
       // Check return types.
       if (!Importer.IsStructurallyEquivalent(D->getReturnType(),
                                              FoundMethod->getReturnType())) {
-        Importer.ToDiag(Loc, diag::err_odr_objc_method_result_type_inconsistent)
+        Importer.ToDiag(Loc, diag::warn_odr_objc_method_result_type_inconsistent)
             << D->isInstanceMethod() << Name << D->getReturnType()
             << FoundMethod->getReturnType();
         Importer.ToDiag(FoundMethod->getLocation(),
@@ -3757,7 +3757,7 @@
 
       // Check the number of parameters.
       if (D->param_size() != FoundMethod->param_size()) {
-        Importer.ToDiag(Loc, diag::err_odr_objc_method_num_params_inconsistent)
+        Importer.ToDiag(Loc, diag::warn_odr_objc_method_num_params_inconsistent)
           << D->isInstanceMethod() << Name
           << D->param_size() << FoundMethod->param_size();
         Importer.ToDiag(FoundMethod->getLocation(),
@@ -3774,7 +3774,7 @@
         if (!Importer.IsStructurallyEquivalent((*P)->getType(),
                                                (*FoundP)->getType())) {
           Importer.FromDiag((*P)->getLocation(),
-                            diag::err_odr_objc_method_param_type_inconsistent)
+                            diag::warn_odr_objc_method_param_type_inconsistent)
             << D->isInstanceMethod() << Name
             << (*P)->getType() << (*FoundP)->getType();
           Importer.ToDiag((*FoundP)->getLocation(), diag::note_odr_value_here)
@@ -3787,7 +3787,7 @@
       // Check variadic/non-variadic.
       // Check the number of parameters.
       if (D->isVariadic() != FoundMethod->isVariadic()) {
-        Importer.ToDiag(Loc, diag::err_odr_objc_method_variadic_inconsistent)
+        Importer.ToDiag(Loc, diag::warn_odr_objc_method_variadic_inconsistent)
           << D->isInstanceMethod() << Name;
         Importer.ToDiag(FoundMethod->getLocation(),
                         diag::note_odr_objc_method_here)
@@ -4332,7 +4332,7 @@
     if ((bool)FromSuper != (bool)ToSuper ||
         (FromSuper && !declaresSameEntity(FromSuper, ToSuper))) {
       Importer.ToDiag(To->getLocation(),
-                      diag::err_odr_objc_superclass_inconsistent)
+                      diag::warn_odr_objc_superclass_inconsistent)
         << To->getDeclName();
       if (ToSuper)
         Importer.ToDiag(To->getSuperClassLoc(), diag::note_odr_objc_superclass)
@@ -4601,7 +4601,7 @@
          !declaresSameEntity(Super->getCanonicalDecl(),
                              Impl->getSuperClass()))) {
       Importer.ToDiag(Impl->getLocation(),
-                      diag::err_odr_objc_superclass_inconsistent)
+                      diag::warn_odr_objc_superclass_inconsistent)
         << Iface->getDeclName();
       // FIXME: It would be nice to have the location of the superclass
       // below.
@@ -4649,7 +4649,7 @@
       // Check property types.
       if (!Importer.IsStructurallyEquivalent(D->getType(),
                                              FoundProp->getType())) {
-        Importer.ToDiag(Loc, diag::err_odr_objc_property_type_inconsistent)
+        Importer.ToDiag(Loc, diag::warn_odr_objc_property_type_inconsistent)
           << Name << D->getType() << FoundProp->getType();
         Importer.ToDiag(FoundProp->getLocation(), diag::note_odr_value_here)
           << FoundProp->getType();
@@ -4756,7 +4756,7 @@
     // vs. @dynamic).
     if (D->getPropertyImplementation() != ToImpl->getPropertyImplementation()) {
       Importer.ToDiag(ToImpl->getLocation(),
-                      diag::err_odr_objc_property_impl_kind_inconsistent)
+                      diag::warn_odr_objc_property_impl_kind_inconsistent)
         << Property->getDeclName()
         << (ToImpl->getPropertyImplementation()
                                               == ObjCPropertyImplDecl::Dynamic);
@@ -4772,7 +4772,7 @@
     if (D->getPropertyImplementation() == ObjCPropertyImplDecl::Synthesize &&
         Ivar != ToImpl->getPropertyIvarDecl()) {
       Importer.ToDiag(ToImpl->getPropertyIvarDeclLoc(),
-                      diag::err_odr_objc_synthesize_ivar_inconsistent)
+                      diag::warn_odr_objc_synthesize_ivar_inconsistent)
         << Property->getDeclName()
         << ToImpl->getPropertyIvarDecl()->getDeclName()
         << Ivar->getDeclName();