Fix "Koltin" typos throughout codebase (#3383)

* Fix "Koltin" typos throughout codebase

* Update K2MetadataKlibSerializer.kt

spec-docs/NameResolution.adoc

@@ -733,7 +733,7 @@ public class J {
     /* original method */
     public int foo(Runnable r) { return 1; }
 
-    /* syntactic method generated by the Koltin compiler for name resolution */
+    /* syntactic method generated by the Kotlin compiler for name resolution */
     public int foo(final Function0<Unit> f) {
         return foo(new Runnable() {
             public void run() {
@@ -830,4 +830,4 @@ Thus in Kotlin 1.1 the algorithm was slightly changed, and the syntactic methods
 
 We discussed how the Kotlin compiler chooses the function that should be called in each invocation.
 Generally we expect that you write code without confusing overloaded functions.
-However, we wanted to clarify the compiler choice in the cases when it might be unclear.
+However, we wanted to clarify the compiler choice in the cases when it might be unclear.