Ignore -Wfree-labels and -Wmissing-parameter-name

These two parameters -Wfree-labels and -Wmissing-parameter-name
triggers a compilation error on glibc.  Since its safe to ignore
them because they are warnings, then do so.

Signed-off-by: Giuliano Belinassi <gbelinassi@suse.de>

Author: giulianobelinassi

libcextract/ArgvParser.cpp

@@ -54,6 +54,8 @@ static const char *UnsupportedGCCArgs[] = {
   "-Wimplicit-fallthrough=",
   "-Wendif-labels",
   "-Wmissing-selector-name",
+  "-Wfree-labels",
+  "-Wmissing-parameter-name",
 };
 
 ArgvParser::ArgvParser(int argc, char **argv)

libcextract/PrettyPrint.cpp

@@ -36,7 +36,6 @@ static void Attr_Order_Fix(Decl *decl)
     return;
 
   if (decl->hasAttrs()) {
-    const SourceManager &SM = decl->getASTContext().getSourceManager();
     AttrVec &Attrs = decl->getAttrs();
 
     /* Clang always seems to insert the `asm` label last, but lets just swap