Fix a couple of cases of (innocuous) unmarked fallthrough. At least one of these

was unintentional. Found by -Wimplicit-fallthrough, patch by Alexander Kornienko!

llvm-svn: 156082

clang/include/clang/AST/RecursiveASTVisitor.h

@@ -1400,6 +1400,7 @@ bool RecursiveASTVisitor<Derived>::TraverseClassInstantiations(
     case TSK_Undeclared:
     case TSK_ImplicitInstantiation:
       TRY_TO(TraverseDecl(SD));
+      break;
 
     // We don't need to do anything on an explicit instantiation
     // or explicit specialization because there will be an explicit

clang/include/clang/Analysis/Analyses/FormatString.h

@@ -175,6 +175,7 @@ public:
     switch (kind) {
       case PrintErrno:
         assert(IsPrintf);
+        return false;
       case PercentArg:
         return false;
       default: