AnalyzeBranch doesn't change which successors a bb has, just the order
we try to branch to them.

Before we were creating successor lists with duplicated entries. Fixing that
found a bug in isBlockOnlyReachableByFallthrough that would causes it to
return the wrong answer for

-----------
...
jne foo
jmp bar

foo:
----------

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@132882 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/Thumb2/machine-licm.ll b/test/CodeGen/Thumb2/machine-licm.ll
index ee054a1..2468aa6 100644
--- a/test/CodeGen/Thumb2/machine-licm.ll
+++ b/test/CodeGen/Thumb2/machine-licm.ll
@@ -13,7 +13,7 @@
   br i1 %0, label %return, label %bb.nph
 
 bb.nph:                                           ; preds = %entry
-; CHECK: BB#1
+; CHECK: LBB0_1:
 ; CHECK: movw r[[R2:[0-9]+]], :lower16:L_GV$non_lazy_ptr
 ; CHECK: movt r[[R2]], :upper16:L_GV$non_lazy_ptr
 ; CHECK: ldr{{(.w)?}} r[[R2b:[0-9]+]], [r[[R2]]
@@ -21,7 +21,7 @@
 ; CHECK: LBB0_2
 ; CHECK-NOT: LCPI0_0:
 
-; PIC: BB#1
+; PIC: LBB0_1:
 ; PIC: movw r[[R2:[0-9]+]], :lower16:(L_GV$non_lazy_ptr-(LPC0_0+4))
 ; PIC: movt r[[R2]], :upper16:(L_GV$non_lazy_ptr-(LPC0_0+4))
 ; PIC: add r[[R2]], pc