Fix compiler warning, remove extra ";" [NFC]

At least gcc 7.4 complained with
../tools/clang/lib/StaticAnalyzer/Checkers/Taint.cpp:26:53: warning: extra ';' [-Wpedantic]
                                        TaintTagType);
                                                     ^

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@357461 91177308-0d34-0410-b5e6-96231b3b80d8

lib/StaticAnalyzer/Checkers/Taint.cpp

@@ -23,7 +23,7 @@ REGISTER_MAP_WITH_PROGRAMSTATE(TaintMap, SymbolRef, TaintTagType)
 
 // Partially tainted symbols.
 REGISTER_MAP_FACTORY_WITH_PROGRAMSTATE(TaintedSubRegions, const SubRegion *,
-                                       TaintTagType);
+                                       TaintTagType)
 REGISTER_MAP_WITH_PROGRAMSTATE(DerivedSymTaint, SymbolRef, TaintedSubRegions)
 
 void taint::printTaint(ProgramStateRef State, raw_ostream &Out, const char *NL,