sprinkle some more SAL_WARN_UNUSED around

Change-Id: Iaa1508584f005cba6e2ab63d4053cde4ce8637df

tools/inc/poly.h

@@ -21,7 +21,7 @@
 
 #include <tools/gen.hxx>
 
-class ImplPolygonData
+class SAL_WARN_UNUSED ImplPolygonData
 {
 public:
     Point*          mpPointAry;
@@ -30,7 +30,7 @@ public:
     sal_uIntPtr           mnRefCount;
 };
 
-class ImplPolygon  : public ImplPolygonData
+class SAL_WARN_UNUSED ImplPolygon  : public ImplPolygonData
 {
 public:
                     ImplPolygon( sal_uInt16 nInitSize, sal_Bool bFlags = sal_False );
@@ -48,7 +48,7 @@ public:
 class Polygon;
 typedef Polygon* SVPPOLYGON;
 
-class ImplPolyPolygon
+class SAL_WARN_UNUSED ImplPolyPolygon
 {
 public:
     SVPPOLYGON*     mpPolyAry;

tools/inc/tools/date.hxx

@@ -27,7 +27,7 @@ class ResId;
 enum DayOfWeek { MONDAY, TUESDAY, WEDNESDAY, THURSDAY, FRIDAY,
                  SATURDAY, SUNDAY };
 
-class TOOLS_DLLPUBLIC Date
+class TOOLS_DLLPUBLIC SAL_WARN_UNUSED Date
 {
 private:
     sal_uInt32      nDate;

tools/inc/tools/datetime.hxx

@@ -24,7 +24,7 @@
 #include <tools/date.hxx>
 #include <tools/time.hxx>
 
-class TOOLS_DLLPUBLIC DateTime : public Date, public Time
+class TOOLS_DLLPUBLIC SAL_WARN_UNUSED DateTime : public Date, public Time
 {
 public:
     enum DateTimeInitSystem

tools/inc/tools/fract.hxx

@@ -24,7 +24,7 @@
 
 class SvStream;
 
-class TOOLS_DLLPUBLIC Fraction
+class TOOLS_DLLPUBLIC SAL_WARN_UNUSED Fraction
 {
 private:
     long            nNumerator;

tools/inc/tools/poly.hxx

@@ -53,7 +53,7 @@ enum PolyFlags
 };
 #endif
 
-class PolyOptimizeData
+class SAL_WARN_UNUSED PolyOptimizeData
 {
 private:
 
@@ -81,7 +81,7 @@ namespace basegfx
     class B2DPolyPolygon;
 }
 
-class TOOLS_DLLPUBLIC Polygon
+class TOOLS_DLLPUBLIC SAL_WARN_UNUSED Polygon
 {
 private:
     ImplPolygon*        mpImplPolygon;
@@ -194,7 +194,7 @@ public:
     explicit Polygon(const ::basegfx::B2DPolygon& rPolygon);
 };
 
-class TOOLS_DLLPUBLIC PolyPolygon
+class TOOLS_DLLPUBLIC SAL_WARN_UNUSED PolyPolygon
 {
 private:
     ImplPolyPolygon*    mpImplPolyPolygon;

tools/inc/tools/time.hxx

@@ -30,7 +30,7 @@ class ResId;
            25 hours or 10 minus 20 seconds being (non-negative) 10 seconds.
 */
 
-class TOOLS_DLLPUBLIC Time
+class TOOLS_DLLPUBLIC SAL_WARN_UNUSED Time
 {
 private:
     sal_Int32       nTime;

tools/inc/tools/unqidx.hxx

@@ -26,7 +26,7 @@
 
 #define UNIQUEINDEX_ENTRY_NOTFOUND   CONTAINER_ENTRY_NOTFOUND
 
-class TOOLS_DLLPUBLIC UniqueIndexImpl : public std::map<sal_uInt32, void*>
+class TOOLS_DLLPUBLIC SAL_WARN_UNUSED UniqueIndexImpl : public std::map<sal_uInt32, void*>
 {
 private:
     sal_uIntPtr   nStartIndex;