[llvm] [llvm][DebugInfo] formatv in LVReader (PR #192007)

[Konrad Kleine via llvm-commits]

================
@@ -70,22 +70,19 @@ bool checkIntegrityScopesTree(LVScope *Root) {
     });
 
     auto PrintIndex = [](unsigned Index) {
-      if (Index)
-        dbgs() << format("%8d: ", Index);
-      else
-        dbgs() << format("%8c: ", ' ');
+      dbgs() << formatv("{0,8}: ", Index ? Index : ' ');
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kwk wrote:

@DavidSpickett I ran a test and it looks like the output is as I wanted it to be:

```c++
EXPECT_EQ("        ", printToString(format("%8c", ' ')));
EXPECT_EQ("        ", formatv("{0,8}", ' ').str());
```

What am I missing?

https://github.com/llvm/llvm-project/pull/192007