Typos: ablity -> ability

src/coreclr/jit/optimizer.cpp

@@ -5052,7 +5052,7 @@ void Compiler::optHoistCandidate(GenTree*              tree,
                                  FlowGraphNaturalLoop* loop,
                                  LoopHoistContext*     hoistCtxt)
 {
-    // It must pass the hoistable profitablity tests for this loop level
+    // It must pass the hoistable profitability tests for this loop level
     if (!optIsProfitableToHoistTree(tree, loop, hoistCtxt))
     {
         JITDUMP("   ... not profitable to hoist\n");

src/libraries/System.Text.RegularExpressions/src/System/Text/RegularExpressions/Symbolic/SymbolicRegexNode.cs

@@ -243,7 +243,7 @@ bool WithCache(uint context)
 
                 Debug.Assert(context < CharKind.ContextLimit);
 
-                // If nullablity has been computed for the given context then return it
+                // If nullability has been computed for the given context then return it
                 byte b = Volatile.Read(ref _nullabilityCache[context]);
                 if (b != UndefinedByte)
                 {

src/native/corehost/bundle/extractor.cpp

@@ -219,7 +219,7 @@ void extractor_t::commit_dir()
     // Retry the move operation with some wait in between the attempts. This is to workaround for possible file locking
     // caused by AV software. Basically the extraction process above writes a bunch of executable files to disk
     // and some AV software may decide to scan them on write. If this happens the files will be locked which blocks
-    // our ablity to move them.
+    // our ability to move them.
 
     bool extracted_by_concurrent_process = false;
     bool extracted_by_current_process =