[NFC][LLVM][XRay] Namespace related code cleanup (#163068)

Author: jurahul

llvm/include/llvm/XRay/BlockIndexer.h

@@ -19,8 +19,7 @@
 #include <cstdint>
 #include <vector>
 
-namespace llvm {
-namespace xray {
+namespace llvm::xray {
 
 // The BlockIndexer will gather all related records associated with a
 // process+thread and group them by 'Block'.
@@ -63,7 +62,6 @@ class LLVM_ABI BlockIndexer : public RecordVisitor {
   Error flush();
 };
 
-} // namespace xray
-} // namespace llvm
+} // namespace llvm::xray
 
 #endif // LLVM_XRAY_BLOCKINDEXER_H

llvm/include/llvm/XRay/BlockPrinter.h

@@ -18,8 +18,7 @@
 #include "llvm/XRay/FDRRecords.h"
 #include "llvm/XRay/RecordPrinter.h"
 
-namespace llvm {
-namespace xray {
+namespace llvm::xray {
 
 class LLVM_ABI BlockPrinter : public RecordVisitor {
   enum class State {
@@ -55,7 +54,6 @@ class LLVM_ABI BlockPrinter : public RecordVisitor {
   void reset() { CurrentState = State::Start; }
 };
 
-} // namespace xray
-} // namespace llvm
+} // namespace llvm::xray
 
 #endif // LLVM_XRAY_BLOCKPRINTER_H

llvm/include/llvm/XRay/BlockVerifier.h

@@ -16,8 +16,7 @@
 #include "llvm/Support/Compiler.h"
 #include "llvm/XRay/FDRRecords.h"
 
-namespace llvm {
-namespace xray {
+namespace llvm::xray {
 
 class LLVM_ABI BlockVerifier : public RecordVisitor {
 public:
@@ -64,7 +63,6 @@ class LLVM_ABI BlockVerifier : public RecordVisitor {
   void reset();
 };
 
-} // namespace xray
-} // namespace llvm
+} // namespace llvm::xray
 
 #endif // LLVM_XRAY_BLOCKVERIFIER_H

llvm/include/llvm/XRay/FDRLogBuilder.h

@@ -10,8 +10,7 @@
 
 #include "llvm/XRay/FDRRecords.h"
 
-namespace llvm {
-namespace xray {
+namespace llvm::xray {
 
 /// The LogBuilder class allows for creating ad-hoc collections of records
 /// through the `add<...>(...)` function. An example use of this API is in
@@ -34,7 +33,6 @@ class LogBuilder {
   std::vector<std::unique_ptr<Record>> consume() { return std::move(Records); }
 };
 
-} // namespace xray
-} // namespace llvm
+} // namespace llvm::xray
 
 #endif // LLVM_XRAY_FDRLOGBUILDER_H

llvm/include/llvm/XRay/FDRRecordConsumer.h

@@ -15,8 +15,7 @@
 #include <memory>
 #include <vector>
 
-namespace llvm {
-namespace xray {
+namespace llvm::xray {
 
 class RecordConsumer {
 public:
@@ -48,7 +47,6 @@ class LLVM_ABI PipelineConsumer : public RecordConsumer {
   Error consume(std::unique_ptr<Record> R) override;
 };
 
-} // namespace xray
-} // namespace llvm
+} // namespace llvm::xray
 
 #endif // LLVM_XRAY_FDRRECORDCONSUMER_H

llvm/include/llvm/XRay/FDRRecordProducer.h

@@ -14,8 +14,7 @@
 #include "llvm/XRay/XRayRecord.h"
 #include <memory>
 
-namespace llvm {
-namespace xray {
+namespace llvm::xray {
 
 class RecordProducer {
 public:
@@ -45,7 +44,6 @@ class LLVM_ABI FileBasedRecordProducer : public RecordProducer {
   Expected<std::unique_ptr<Record>> produce() override;
 };
 
-} // namespace xray
-} // namespace llvm
+} // namespace llvm::xray
 
 #endif // LLVM_XRAY_FDRRECORDPRODUCER_H

llvm/include/llvm/XRay/FDRRecords.h

@@ -23,8 +23,7 @@
 #include "llvm/Support/Error.h"
 #include "llvm/XRay/XRayRecord.h"
 
-namespace llvm {
-namespace xray {
+namespace llvm::xray {
 
 class RecordVisitor;
 class RecordInitializer;
@@ -444,7 +443,6 @@ class LLVM_ABI RecordInitializer : public RecordVisitor {
   Error visit(TypedEventRecord &) override;
 };
 
-} // namespace xray
-} // namespace llvm
+} // namespace llvm::xray
 
 #endif // LLVM_XRAY_FDRRECORDS_H

llvm/include/llvm/XRay/FDRTraceExpander.h

@@ -17,8 +17,7 @@
 #include "llvm/XRay/FDRRecords.h"
 #include "llvm/XRay/XRayRecord.h"
 
-namespace llvm {
-namespace xray {
+namespace llvm::xray {
 
 class TraceExpander : public RecordVisitor {
   // Type-erased callback for handling individual XRayRecord instances.
@@ -56,7 +55,6 @@ class TraceExpander : public RecordVisitor {
   Error flush();
 };
 
-} // namespace xray
-} // namespace llvm
+} // namespace llvm::xray
 
 #endif // LLVM_XRAY_FDRTRACEEXPANDER_H

llvm/include/llvm/XRay/FDRTraceWriter.h

@@ -18,8 +18,7 @@
 #include "llvm/XRay/FDRRecords.h"
 #include "llvm/XRay/XRayRecord.h"
 
-namespace llvm {
-namespace xray {
+namespace llvm::xray {
 
 /// The FDRTraceWriter allows us to hand-craft an XRay Flight Data Recorder
 /// (FDR) mode log file. This is used primarily for testing, generating
@@ -50,7 +49,6 @@ class LLVM_ABI FDRTraceWriter : public RecordVisitor {
   support::endian::Writer OS;
 };
 
-} // namespace xray
-} // namespace llvm
+} // namespace llvm::xray
 
 #endif // LLVM_XRAY_FDRTRACEWRITER_H

llvm/include/llvm/XRay/FileHeaderReader.h

@@ -19,15 +19,13 @@
 #include "llvm/XRay/XRayRecord.h"
 #include <cstdint>
 
-namespace llvm {
-namespace xray {
+namespace llvm::xray {
 
 /// Convenience function for loading the file header given a data extractor at a
 /// specified offset.
 LLVM_ABI Expected<XRayFileHeader>
 readBinaryFormatHeader(DataExtractor &HeaderExtractor, uint64_t &OffsetPtr);
 
-} // namespace xray
-} // namespace llvm
+} // namespace llvm::xray
 
 #endif // LLVM_XRAY_FILEHEADERREADER_H