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/GlobalOpt/cleanup-pointer-root-users.ll b/llvm/test/Transforms/GlobalOpt/cleanup-pointer-root-users.ll
index b6dfdea..16da531 100644
--- a/llvm/test/Transforms/GlobalOpt/cleanup-pointer-root-users.ll
+++ b/llvm/test/Transforms/GlobalOpt/cleanup-pointer-root-users.ll
@@ -30,7 +30,7 @@
 declare i8* @strdup(i8*)
 declare void @foo2(i8*)
 
-define void @test3() uwtable {
+define void @test3() uwtable personality i32 (i32, i64, i8*, i8*)* @__gxx_personality_v0 {
 ; CHECK-LABEL: @test3(
 ; CHECK-NOT: bb1:
 ; CHECK-NOT: bb2:
@@ -41,7 +41,7 @@
   store i8* %ptr, i8** @glbl
   unreachable
 bb2:
-  %tmp1 = landingpad { i8*, i32 } personality i32 (i32, i64, i8*, i8*)* @__gxx_personality_v0
+  %tmp1 = landingpad { i8*, i32 }
           cleanup
   resume { i8*, i32 } %tmp1
 }