Make clang -cc1 disable Objective-C exceptions by default, and add a -fobjc-exceptions flag to turn them on.

Update all tests accordingly.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@126177 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGenObjC/try.m b/test/CodeGenObjC/try.m
index 884e33a..ba79d62 100644
--- a/test/CodeGenObjC/try.m
+++ b/test/CodeGenObjC/try.m
@@ -1,5 +1,5 @@
-// RUN: %clang_cc1 %s -S -o - -triple=i686-apple-darwin9
-// RUN: %clang_cc1 %s -S -o - -triple=x86_64-apple-darwin9
+// RUN: %clang_cc1 %s -fobjc-exceptions -S -o - -triple=i686-apple-darwin9
+// RUN: %clang_cc1 %s -fobjc-exceptions -S -o - -triple=x86_64-apple-darwin9
 
 // rdar://6757213 - Don't crash if the internal proto for
 // __objc_personality_v0 mismatches with an actual one.