loplugin:flatten in idl

Change-Id: I7e8fe338a366d146c7951fe54f74cc5e42bde039
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/91833
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

idl/source/objects/slot.cxx

@@ -386,9 +386,9 @@ void SvMetaSlot::WriteSlotStubs( const OString& rShellName,
     }
 
     aMethodName = GetStateMethod();
-    if (!aMethodName.isEmpty() &&
-        aMethodName != "NoState")
-    {
+    if (aMethodName.isEmpty() || aMethodName == "NoState")
+        return;
+
     bool bIn = false;
     for ( size_t n=0; n < rList.size(); n++ )
     {
@@ -409,7 +409,6 @@ void SvMetaSlot::WriteSlotStubs( const OString& rShellName,
                .WriteChar( ')' ) << endl;
     }
 }
-}
 
 void SvMetaSlot::WriteSlot( const OString& rShellName, sal_uInt16 nCount,
                             const OString& rSlotId,

idl/source/prj/parser.cxx

@@ -431,8 +431,9 @@ void SvIdlParser::ReadInterfaceOrShellMethod( SvMetaAttribute& rAttr )
     xT->SetRef(rAttr.GetType() );
     rAttr.aType = xT;
     rAttr.aType->SetType( MetaTypeType::Method );
-    if (!ReadIf(')'))
-    {
+    if (ReadIf(')'))
+        return;
+
     while (true)
     {
         tools::SvRef<SvMetaAttribute> xParamAttr( new SvMetaAttribute() );
@@ -445,7 +446,6 @@ void SvIdlParser::ReadInterfaceOrShellMethod( SvMetaAttribute& rAttr )
     }
     Read(')');
 }
-}
 
 void SvIdlParser::ReadSlotId(SvIdentifier& rSlotId)
 {