fix typos to cycle bots

llvm/lib/DebugInfo/CodeView/LazyRandomTypeCollection.cpp

@@ -185,7 +185,7 @@ Error LazyRandomTypeCollection::visitRangeForType(TypeIndex TI) {
     // They've asked us to fetch a type index, but the entry we found in the
     // partial offsets array has already been visited.  Since we visit an entire
     // block every time, that means this record should have been previously
-    // discovered.  Ultimately, this means this is a request for a non-existant
+    // discovered.  Ultimately, this means this is a request for a non-existent
     // type index.
     return make_error<CodeViewError>("Invalid type index");
   }

llvm/lib/DebugInfo/CodeView/RecordSerialization.cpp

@@ -34,7 +34,7 @@ StringRef llvm::codeview::getBytesAsCString(ArrayRef<uint8_t> LeafData) {
 }
 
 Error llvm::codeview::consume(BinaryStreamReader &Reader, APSInt &Num) {
-  // Used to avoid overload ambiguity on APInt construtor.
+  // Used to avoid overload ambiguity on APInt constructor.
   bool FalseVal = false;
   uint16_t Short;
   if (auto EC = Reader.readInteger(Short))

llvm/lib/DebugInfo/CodeView/TypeRecordMapping.cpp

@@ -232,7 +232,7 @@ Error TypeRecordMapping::visitMemberBegin(CVMemberRecord &Record) {
 
   // The largest possible subrecord is one in which there is a record prefix,
   // followed by the subrecord, followed by a continuation, and that entire
-  // sequence spaws `MaxRecordLength` bytes.  So the record's length is
+  // sequence spawns `MaxRecordLength` bytes.  So the record's length is
   // calculated as follows.
 
   constexpr uint32_t ContinuationLength = 8;

llvm/lib/DebugInfo/CodeView/TypeStreamMerger.cpp

@@ -38,7 +38,7 @@ namespace {
 /// 0x1000.
 ///
 /// Type records are only allowed to use type indices smaller than their own, so
-/// a type stream is effectively a topologically sorted DAG. Cycles occuring in
+/// a type stream is effectively a topologically sorted DAG. Cycles occurring in
 /// the type graph of the source program are resolved with forward declarations
 /// of composite types. This class implements the following type stream merging
 /// algorithm, which relies on this DAG structure: