loplugin:implicitboolconversion

("explicit conversion (NoOp) from 'const bool' to 'bool' implicitly cast back to
'const bool'", seen now with a recent trunk Clang 6, and with experimentally
enabling -std=gnu++17 for the LO build; not sure what caused this to be
triggered only now for me)

Change-Id: I5310961b1d50870d3ae06554e4cb37e12ac68151

editeng/source/items/paraitem.cxx

@@ -572,7 +572,7 @@ bool    SvxHyphenZoneItem::QueryValue( uno::Any& rVal, sal_uInt8 nMemberId ) con
     switch(nMemberId)
     {
         case  MID_IS_HYPHEN:
-            rVal <<= (bool)bHyphen;
+            rVal <<= bHyphen;
         break;
         case MID_HYPHEN_MIN_LEAD:
             rVal <<= (sal_Int16)nMinLead;

editeng/source/items/textitem.cxx

@@ -2496,7 +2496,7 @@ bool SvxTwoLinesItem::QueryValue( css::uno::Any& rVal,
     switch( nMemberId )
     {
     case MID_TWOLINES:
-        rVal <<= (bool) bOn;
+        rVal <<= bOn;
         break;
     case MID_START_BRACKET:
         {