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/IndVarSimplify/lftr-extend-const.ll

@@ -1,6 +1,6 @@
 ;RUN: opt -S %s -indvars | FileCheck %s
 
-; CHECK-LABEL: @foo
+; CHECK-LABEL-LABEL: @foo(
 ; CHECK-NOT: %lftr.wideiv = trunc i32 %indvars.iv.next to i16
 ; CHECK: %exitcond = icmp ne i32 %indvars.iv.next, 512
 define void @foo() #0 {
@@ -20,7 +20,7 @@ for.end:                                          ; preds = %for.body
 }
 
 ; Check that post-incrementing the backedge taken count does not overflow.
-; CHECK-LABEL: @postinc
+; CHECK-LABEL-LABEL: @postinc(
 ; CHECK: icmp eq i32 %indvars.iv.next, 256
 define i32 @postinc() #0 {
 entry: