Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.

This update was done with the following bash script:

  find test/Transforms -name "*.ll" | \
  while read NAME; do
    echo "$NAME"
    if ! grep -q "^; *RUN: *llc" $NAME; then
      TEMP=`mktemp -t temp`
      cp $NAME $TEMP
      sed -n "s/^define [^@]*@\([A-Za-z0-9_]*\)(.*$/\1/p" < $NAME | \
      while read FUNC; do
        sed -i '' "s/;\(.*\)\([A-Za-z0-9_]*\):\( *\)@$FUNC\([( ]*\)\$/;\1\2-LABEL:\3@$FUNC(/g" $TEMP
      done
      mv $TEMP $NAME
    fi
  done


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@186268 91177308-0d34-0410-b5e6-96231b3b80d8

test/Transforms/InstCombine/sink_instruction.ll

@@ -4,7 +4,7 @@
 ;; arm of the 'if'.
 
 define i32 @test1(i1 %C, i32 %A, i32 %B) {
-; CHECK: @test1
+; CHECK-LABEL: @test1(
 entry:
         %tmp.2 = sdiv i32 %A, %B                ; <i32> [#uses=1]
         %tmp.9 = add i32 %B, %A         ; <i32> [#uses=1]
@@ -22,7 +22,7 @@ endif:          ; preds = %entry
 
 ;; PHI use, sink divide before call.
 define i32 @test2(i32 %x) nounwind ssp {
-; CHECK: @test2
+; CHECK-LABEL: @test2(
 ; CHECK-NOT: sdiv i32
 entry:
   br label %bb