Move the personality function from LandingPadInst to Function

The personality routine currently lives in the LandingPadInst.

This isn't desirable because:
- All LandingPadInsts in the same function must have the same
  personality routine.  This means that each LandingPadInst beyond the
  first has an operand which produces no additional information.

- There is ongoing work to introduce EH IR constructs other than
  LandingPadInst.  Moving the personality routine off of any one
  particular Instruction and onto the parent function seems a lot better
  than have N different places a personality function can sneak onto an
  exceptional function.

Differential Revision: http://reviews.llvm.org/D10429

llvm-svn: 239940
diff --git a/llvm/test/Transforms/Inline/invoke_test-3.ll b/llvm/test/Transforms/Inline/invoke_test-3.ll
index f5ce95a..5eabfdd 100644
--- a/llvm/test/Transforms/Inline/invoke_test-3.ll
+++ b/llvm/test/Transforms/Inline/invoke_test-3.ll
@@ -5,7 +5,7 @@
 
 declare void @might_throw()
 
-define internal i32 @callee() {
+define internal i32 @callee() personality i32 (...)* @__gxx_personality_v0 {
         invoke void @might_throw( )
                         to label %cont unwind label %exc
 
@@ -14,14 +14,14 @@
 
 exc:            ; preds = %0a
        ; This just rethrows the exception!
-        %exn = landingpad {i8*, i32} personality i32 (...)* @__gxx_personality_v0
+        %exn = landingpad {i8*, i32}
                  cleanup
         resume { i8*, i32 } %exn
 }
 
 ; caller returns true if might_throw throws an exception... which gets
 ; propagated by callee.
-define i32 @caller() {
+define i32 @caller() personality i32 (...)* @__gxx_personality_v0 {
         %X = invoke i32 @callee( )
                         to label %cont unwind label %Handler            ; <i32> [#uses=1]
 
@@ -30,7 +30,7 @@
 
 Handler:                ; preds = %0
 ; This consumes an exception thrown by might_throw
-        %exn = landingpad {i8*, i32} personality i32 (...)* @__gxx_personality_v0
+        %exn = landingpad {i8*, i32}
                  cleanup
         ret i32 1
 }