[Minor][SQL] Fix typo in sql

In this PR, "analyser" is changed to "analyzer" to keep a consistent naming. Some other typos are also fixed.

Author: Guancheng (G.C.) Chen <chenguancheng@gmail.com>

Closes apache#5474 from gchen/sql-typo and squashes the following commits:

70e6e76 [Guancheng (G.C.) Chen] Merge branch 'sql-typo' of github.com:gchen/spark into sql-typo
fb7a6e2 [Guancheng (G.C.) Chen] fix typo in sql
37e3da1 [Guancheng (G.C.) Chen] fix type in sql

sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Analyzer.scala

@@ -27,7 +27,7 @@ import org.apache.spark.sql.types._
 
 /**
  * A trivial [[Analyzer]] with an [[EmptyCatalog]] and [[EmptyFunctionRegistry]]. Used for testing
- * when all relations are already filled in and the analyser needs only to resolve attribute
+ * when all relations are already filled in and the analyzer needs only to resolve attribute
  * references.
  */
 object SimpleAnalyzer extends Analyzer(EmptyCatalog, EmptyFunctionRegistry, true)

sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/Catalog.scala

@@ -22,7 +22,7 @@ import scala.collection.mutable
 import org.apache.spark.sql.catalyst.plans.logical.{LogicalPlan, Subquery}
 
 /**
- * Thrown by a catalog when a table cannot be found.  The analzyer will rethrow the exception
+ * Thrown by a catalog when a table cannot be found.  The analyzer will rethrow the exception
  * as an AnalysisException with the correct position information.
  */
 class NoSuchTableException extends Exception
@@ -201,7 +201,7 @@ trait OverrideCatalog extends Catalog {
 
 /**
  * A trivial catalog that returns an error when a relation is requested.  Used for testing when all
- * relations are already filled in and the analyser needs only to resolve attribute references.
+ * relations are already filled in and the analyzer needs only to resolve attribute references.
  */
 object EmptyCatalog extends Catalog {
 

sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/analysis/FunctionRegistry.scala

@@ -57,8 +57,8 @@ class SimpleFunctionRegistry(val caseSensitive: Boolean) extends FunctionRegistr
 }
 
 /**
- * A trivial catalog that returns an error when a function is requested.  Used for testing when all
- * functions are already filled in and the analyser needs only to resolve attribute references.
+ * A trivial catalog that returns an error when a function is requested. Used for testing when all
+ * functions are already filled in and the analyzer needs only to resolve attribute references.
  */
 object EmptyFunctionRegistry extends FunctionRegistry {
   override def registerFunction(name: String, builder: FunctionBuilder): Unit = {