[clang-tools-extra] [clang-tidy] use upper case letters for bool conversion suffix (PR #102831)

[Julian Schmidt via cfe-commits]

================
@@ -39,14 +39,22 @@ AST_MATCHER(Stmt, isNULLMacroExpansion) {
 }
 
 StringRef getZeroLiteralToCompareWithForType(CastKind CastExprKind,
-                                             QualType Type,
-                                             ASTContext &Context) {
+                                             QualType Type, ASTContext &Context,
+                                             bool UseUpperCaseSuffix) {
   switch (CastExprKind) {
-  case CK_IntegralToBoolean:
-    return Type->isUnsignedIntegerType() ? "0u" : "0";
+  case CK_IntegralToBoolean: {
+    if (Type->isUnsignedIntegerType()) {
+      return UseUpperCaseSuffix ? "0U" : "0u";
+    }
+    return "0";
+  }
 
-  case CK_FloatingToBoolean:
-    return Context.hasSameType(Type, Context.FloatTy) ? "0.0f" : "0.0";
+  case CK_FloatingToBoolean: {
+    if (Context.hasSameType(Type, Context.FloatTy)) {
+      return UseUpperCaseSuffix ? "0.0F" : "0.0f";
+    }
----------------
5chmidti wrote:

Nit: Please remove the two compound statements of the two `if` statements (LLVM coding standards).

e.g.,
```c++
if (Type->isUnsignedIntegerType())
      return UseUpperCaseSuffix ? "0U" : "0u";
```

This also applies to lines 214-226

https://github.com/llvm/llvm-project/pull/102831