Fixes toString() for function pointers and added support for member function pointers.

- thanks to Malcolm Noyes for supplying sample code on which the solution here was based

projects/SelfTest/Baselines/console.std.approved.txt

@@ -750,5 +750,5 @@ with expansion:
   "first" == "second"
 
 ===============================================================================
-122 test cases - 36 failed (675 assertions - 91 failed)
+123 test cases - 36 failed (676 assertions - 91 failed)
 

projects/SelfTest/Baselines/console.sw.approved.txt

@@ -6366,7 +6366,21 @@ TrickyTests.cpp:<line number>:
 PASSED:
   REQUIRE( a == &foo )
 with expansion:
-  1 == 1
+  0x<hex digits> == 0x<hex digits>
+
+-------------------------------------------------------------------------------
+Comparing member function pointers
+-------------------------------------------------------------------------------
+TrickyTests.cpp:<line number>
+...............................................................................
+
+TrickyTests.cpp:<line number>:
+PASSED:
+  CHECK( m == &S::f )
+with expansion:
+  0x<hex digits>
+  ==
+  0x<hex digits>
 
 -------------------------------------------------------------------------------
 pointer to class
@@ -7144,5 +7158,5 @@ with expansion:
   true
 
 ===============================================================================
-122 test cases - 51 failed (694 assertions - 110 failed)
+123 test cases - 51 failed (695 assertions - 110 failed)
 

projects/SelfTest/Baselines/junit.sw.approved.txt

@@ -1,5 +1,5 @@
 <testsuites>
-  <testsuite name="~_" errors="10" failures="100" tests="694" hostname="tbd" time="{duration}" timestamp="tbd">
+  <testsuite name="~_" errors="10" failures="100" tests="695" hostname="tbd" time="{duration}" timestamp="tbd">
     <testcase classname="global" name="Some simple comparisons between doubles" time="{duration}"/>
     <testcase classname="global" name="Approximate comparisons with different epsilons" time="{duration}"/>
     <testcase classname="global" name="Approximate comparisons with floats" time="{duration}"/>
@@ -514,6 +514,7 @@ TrickyTests.cpp:<line number>
     <testcase classname="Assertions then sections" name="A section/Another other section" time="{duration}"/>
     <testcase classname="global" name="non streamable - with conv. op" time="{duration}"/>
     <testcase classname="global" name="Comparing function pointers" time="{duration}"/>
+    <testcase classname="global" name="Comparing member function pointers" time="{duration}"/>
     <testcase classname="global" name="pointer to class" time="{duration}"/>
     <testcase classname="global" name="X/level/0/a" time="{duration}"/>
     <testcase classname="global" name="X/level/0/b" time="{duration}"/>

projects/SelfTest/Baselines/xml.sw.approved.txt

@@ -6637,7 +6637,20 @@ there"
           a == &foo
         </Original>
         <Expanded>
-          1 == 1
+          0x<hex digits> == 0x<hex digits>
+        </Expanded>
+      </Expression>
+      <OverallResult success="true"/>
+    </TestCase>
+    <TestCase name="Comparing member function pointers">
+      <Expression success="true" filename="/Users/philnash/Dev/OSS/Catch/projects/SelfTest/TrickyTests.cpp" >
+        <Original>
+          m == &amp;S::f
+        </Original>
+        <Expanded>
+          0x<hex digits>
+==
+0x<hex digits>
         </Expanded>
       </Expression>
       <OverallResult success="true"/>
@@ -7405,7 +7418,7 @@ there&quot;
       </Section>
       <OverallResult success="true"/>
     </TestCase>
-    <OverallResults successes="584" failures="110"/>
+    <OverallResults successes="585" failures="110"/>
   </Group>
-  <OverallResults successes="584" failures="110"/>
+  <OverallResults successes="585" failures="110"/>
 </Catch>