Fix common misspellings

compiler/testData/diagnostics/tests/cyclicHierarchy/withCompanion/typeIsLowEnough.kt

@@ -11,7 +11,7 @@ public class C {
         open fun m() {}
     }
 
-    // Note that Data is resolved succesfully here because we don't step on error-scope
+    // Note that Data is resolved successfully here because we don't step on error-scope
     val data: Data = Data()
 
     companion <!CYCLIC_SCOPES_WITH_COMPANION!>object<!> : DerivedAbstract() {

compiler/testData/diagnostics/tests/cyclicHierarchy/withCompanion/withMembers_before.kt

@@ -50,7 +50,7 @@ object WithPropertyInBaseDifferentOrder {
     class Data
 
     public class C {
-        // Now it is succesfully resolved (vs. ErrorType like in the previous case)
+        // Now it is successfully resolved (vs. ErrorType like in the previous case)
         val data: Data = Data()
 
         open class <!CYCLIC_SCOPES_WITH_COMPANION!>Base<!>() {