Apply suggestions from code review (#13750)

Comment formatting + typos.

Co-authored-by: odersky <odersky@gmail.com>

Author: elfprince13

compiler/src/dotty/tools/dotc/Compiler.scala

@@ -73,7 +73,7 @@ class Compiler {
          new ProtectedAccessors,     // Add accessors for protected members
          new ExtensionMethods,       // Expand methods of value classes with extension methods
          new UncacheGivenAliases,    // Avoid caching RHS of simple parameterless given aliases
-         new ElimContextClosures, // Unwrap context closures that contain only a context function of compatible type
+         new ElimContextClosures,    // Unwrap context closures that contain only a context function of compatible type
          new ByNameClosures,         // Expand arguments to by-name parameters to closures
          new HoistSuperArgs,         // Hoist complex arguments of supercalls to enclosing scope
          new SpecializeApplyMethods, // Adds specialized methods to FunctionN

compiler/src/dotty/tools/dotc/transform/ElimContextClosures.scala

@@ -26,8 +26,8 @@ import reporting.trace
  * function literal.
  *
  * This makes for very ergonomic client code, but the implementation
- * requires the wrapper to be genereated before type information is available.
- * Thus, it can't be determine if the passed value is already a context function
+ * requires the wrapper to be generated before type information is available.
+ * Thus, it can't be determined if the passed value is already a context function
  * of the expected type, and the closure must be generated either way.
  *
  * Without this phase, when a contextual function is passed as an argument to a