Fix a bunch of trivial cases of 'CHECK[^:]*$' in the tests. NFCI

I looked into adding a warning / error for this to FileCheck, but there doesn't
seem to be a good way to avoid it triggering on the instances of it in RUN lines.

llvm-svn: 244481
diff --git a/llvm/test/Transforms/InstSimplify/apint-or.ll b/llvm/test/Transforms/InstSimplify/apint-or.ll
index 5d314db..ebbc7be 100644
--- a/llvm/test/Transforms/InstSimplify/apint-or.ll
+++ b/llvm/test/Transforms/InstSimplify/apint-or.ll
@@ -12,7 +12,7 @@
     %D = and i39 %V, 274877906943
     %R = or i39 %B, %D
     ret i39 %R
-; CHECK-LABEL @test1
+; CHECK-LABEL: @test1
 ; CHECK-NEXT: and {{.*}}, -274877906944
 ; CHECK-NEXT: add
 ; CHECK-NEXT: ret
@@ -30,7 +30,7 @@
     %D = and i399 %V, 274877906943
     %R = or i399 %B, %D
     ret i399 %R
-; CHECK-LABEL @test2
+; CHECK-LABEL: @test2
 ; CHECK-NEXT: and {{.*}}, 18446742974197923840
 ; CHECK-NEXT: add
 ; CHECK-NEXT: ret