Final set of fixes for floating matchers approvals

scripts/approvalTests.py

@@ -57,7 +57,9 @@ nanParser = re.compile(r'''
     |
     \(\(float\)\(INFINITY\ \*\ 0\.0F\)\) # Yet another MSVC NAN macro
     |
-    \(__builtin_nanf\ \(""\)\)                 # Linux (ubuntu) NAN macro
+    \(__builtin_nanf\ \(""\)\)           # Linux (ubuntu) NAN macro
+    |
+    __builtin_nanf\("0x<hex\ digits>"\)  # The weird content of the brackets is there because a different parser has already ran before this one
 ''', re.VERBOSE)