Teach -Wuninitialized to suggest "= false" for initializing bool variables.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124352 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Sema/AnalysisBasedWarnings.cpp b/lib/Sema/AnalysisBasedWarnings.cpp
index 99f19fc..2053bf4 100644
--- a/lib/Sema/AnalysisBasedWarnings.cpp
+++ b/lib/Sema/AnalysisBasedWarnings.cpp
@@ -433,6 +433,9 @@
       else if (vdTy->isRealFloatingType()) {
         initialization = " = 0.0";
       }
+      else if (vdTy->isBooleanType()) {
+        initialization = " = false";
+      }
       else if (vdTy->isScalarType()) {
         initialization = " = 0";
       }