Fix many typos in docs and comments

This commit corrects many typos found in scaladocs, comments and
documentation. It should reduce a bit number of PRs which fix one
typo.

There are no changes in the 'real' code except one corrected name of
a JUnit test method and some error messages in exceptions. In the case
of typos in other method or field names etc., I just skipped them.

Obviously this commit doesn't fix all existing typos. I just generated
in IntelliJ the list of potential typos and looked through it quickly.

5 files changed, 7 insertions, 7 deletions

diff --git a/src/reflect/scala/reflect/api/Liftables.scala b/src/reflect/scala/reflect/api/Liftables.scala
index 673dbce6f5..c6352905d1 100644
--- a/src/reflect/scala/reflect/api/Liftables.scala
+++ b/src/reflect/scala/reflect/api/Liftables.scala
@@ -52,7 +52,7 @@ trait Liftables { self: Universe =>
   object Unliftable extends StandardUnliftableInstances {
     /** A helper method that simplifies creation of `Unliftable` instances.
      *  Takes a partial function which is defined on correct representations of `T`
-     *  and returns corresponing instances.
+     *  and returns corresponding instances.
      *
      *  For example to extract a reference to an object as object itself:
      *
diff --git a/src/reflect/scala/reflect/api/Mirrors.scala b/src/reflect/scala/reflect/api/Mirrors.scala
index 773c6b6fb4..adaf829b32 100644
--- a/src/reflect/scala/reflect/api/Mirrors.scala
+++ b/src/reflect/scala/reflect/api/Mirrors.scala
@@ -338,7 +338,7 @@ trait Mirrors { self: Universe =>
      *  with getting a field or invoking a getter method of the field.
      *
      *  If `symbol` represents a field of a base class with respect to the class of the receiver,
-     *  and this base field is overriden in the class of the receiver, then this method will retrieve
+     *  and this base field is overridden in the class of the receiver, then this method will retrieve
      *  the value of the base field. To achieve overriding behavior, use reflectMethod on an accessor.
      */
     def get: Any
@@ -352,7 +352,7 @@ trait Mirrors { self: Universe =>
      *  with setting a field or invoking a setter method of the field.
      *
      *  If `symbol` represents a field of a base class with respect to the class of the receiver,
-     *  and this base field is overriden in the class of the receiver, then this method will set
+     *  and this base field is overridden in the class of the receiver, then this method will set
      *  the value of the base field. To achieve overriding behavior, use reflectMethod on an accessor.
      */
     def set(value: Any): Unit
diff --git a/src/reflect/scala/reflect/api/Names.scala b/src/reflect/scala/reflect/api/Names.scala
index 03f7b2d218..472da60338 100644
--- a/src/reflect/scala/reflect/api/Names.scala
+++ b/src/reflect/scala/reflect/api/Names.scala
@@ -72,10 +72,10 @@ trait Names {
    *  @group API
    */
   abstract class NameApi {
-    /** Checks wether the name is a term name */
+    /** Checks whether the name is a term name */
     def isTermName: Boolean
 
-    /** Checks wether the name is a type name */
+    /** Checks whether the name is a type name */
     def isTypeName: Boolean
 
     /** Returns a term name that wraps the same string as `this` */
diff --git a/src/reflect/scala/reflect/api/Symbols.scala b/src/reflect/scala/reflect/api/Symbols.scala
index 18d185067e..c01029d067 100644
--- a/src/reflect/scala/reflect/api/Symbols.scala
+++ b/src/reflect/scala/reflect/api/Symbols.scala
@@ -339,7 +339,7 @@ trait Symbols { self: Universe =>
     @deprecated("Use `overrides` instead", "2.11.0")
     def allOverriddenSymbols: List[Symbol]
 
-    /** Returns all symbols overriden by this symbol.
+    /** Returns all symbols overridden by this symbol.
      *
      *  @group Basics
      */
diff --git a/src/reflect/scala/reflect/api/Trees.scala b/src/reflect/scala/reflect/api/Trees.scala
index aeaa38c317..9ecd87c17e 100644
--- a/src/reflect/scala/reflect/api/Trees.scala
+++ b/src/reflect/scala/reflect/api/Trees.scala
@@ -158,7 +158,7 @@ trait Trees { self: Universe =>
     /** Do all parts of this tree satisfy predicate `p`? */
     def forAll(p: Tree => Boolean): Boolean
 
-    /** Tests whether two trees are structurall equal.
+    /** Tests whether two trees are structurally equal.
      *  Note that `==` on trees is reference equality.
      */
     def equalsStructure(that : Tree): Boolean