cid#1607858 silence Overflowed constant

and

cid#1608350 Overflowed constant

Change-Id: I63ad25445df936821c896628b95686a535ef52cf
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/174209
Reviewed-by: Caolán McNamara <caolan.mcnamara@collabora.com>
Tested-by: Jenkins

editeng/source/misc/txtrange.cxx

@@ -456,7 +456,7 @@ void SvxBoundArgs::Add()
                 nBoolIdx = nBoolIdx - next;
                 nCount = nCount - next;
                 aBoolArr.erase( aBoolArr.begin() + nBoolIdx, aBoolArr.begin() + (nBoolIdx + next) );
-                if( nBoolIdx )
+                if (nBoolIdx > 0)
                     aBoolArr[ nBoolIdx - 1 ] = false;
 #if OSL_DEBUG_LEVEL > 1
                 else

filter/source/msfilter/escherex.cxx

@@ -2507,7 +2507,7 @@ static void ConvertEnhancedCustomShapeEquation(
                     OSL_ENSURE(false, "Attempted out of bound access to rEquationOrder of CustomShape (!)");
                 }
             }
-            nMask <<= 1;
+            nMask = sal_uInt32(nMask << 1);
         }
     }
 }