Update compiler/src/dotty/tools/dotc/core/Types.scala

Co-authored-by: Dale Wijnand <[email protected]>

Author: odersky

compiler/src/dotty/tools/dotc/core/Types.scala

@@ -4170,7 +4170,7 @@ object Types {
     private var myStableHash: Byte = 0
     private var myGround: Byte = 0
 
-    private var myisStableRunId: RunId = NoRunId
+    private var myIsStableRunId: RunId = NoRunId
     private var myIsStable: Boolean = uninitialized
 
     private var myEvalRunId: RunId = NoRunId