Initialize 'AllEnumCasesCovered' in SwitchStmt's constructor.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@113448 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AST/Stmt.cpp b/lib/AST/Stmt.cpp
index fc88981..cc4b6c9 100644
--- a/lib/AST/Stmt.cpp
+++ b/lib/AST/Stmt.cpp
@@ -530,7 +530,7 @@
 }
 
 SwitchStmt::SwitchStmt(ASTContext &C, VarDecl *Var, Expr *cond) 
-  : Stmt(SwitchStmtClass), FirstCase(0) 
+  : Stmt(SwitchStmtClass), FirstCase(0), AllEnumCasesCovered(0) 
 {
   setConditionVariable(C, Var);
   SubExprs[COND] = reinterpret_cast<Stmt*>(cond);