[ClangImporter] "wrong args in swift_name" is also a framework bug

...so add the new note here too.

Author: jrose-apple

lib/ClangImporter/ImportType.cpp

@@ -2202,6 +2202,12 @@ ImportedType ClangImporter::Implementation::importMethodParamsAndReturnType(
       SwiftContext.Diags.diagnose(methodLoc, diag::invalid_swift_name_method,
                                   swiftParams.size() < argNames.size(),
                                   swiftParams.size(), argNames.size());
+      ModuleDecl *parentModule = dc->getParentModule();
+      if (parentModule != ImportedHeaderUnit->getParentModule()) {
+        SwiftContext.Diags.diagnose(
+            methodLoc, diag::unresolvable_clang_decl_is_a_framework_bug,
+            parentModule->getName().str());
+      }
     }
     return {Type(), false};
   }

test/ClangImporter/attr-swift_name.swift

@@ -19,11 +19,13 @@ func test(_ i: Int) {
 
   // CHECK: warning: too few parameters in swift_name attribute (expected 2; got 1)
   // CHECK: + (instancetype)g:(id)x outParam:(int *)foo SWIFT_NAME(init(g:));
-
+  // CHECK-NOT: warning:
+  // CHECK: note: please report this issue to the owners of 'ObjCIRExtras'
   // CHECK-NOT: warning:
 
   // CHECK: warning: too few parameters in swift_name attribute (expected 2; got 1)
   // CHECK: + (instancetype)testW:(id)x out:(id *)outObject SWIFT_NAME(ww(_:));
+  // CHECK-NOT: warning:
+  // CHECK: note: please report this issue to the owners of 'ObjCIRExtras'
+  // CHECK-NOT: warning:
 }
-
-// CHECK-NOT: warning: