[MINOR][DOCS] Fix type Information in Quick Start and Programming Guide

Author: Sandeep Singh <sandeep@techaddict.me>

Closes #12841 from techaddict/improve_docs_1.

docs/programming-guide.md

@@ -328,7 +328,7 @@ Text file RDDs can be created using `SparkContext`'s `textFile` method. This met
 
 {% highlight scala %}
 scala> val distFile = sc.textFile("data.txt")
-distFile: RDD[String] = MappedRDD@1d4cee08
+distFile: org.apache.spark.rdd.RDD[String] = data.txt MapPartitionsRDD[10] at textFile at <console>:26
 {% endhighlight %}
 
 Once created, `distFile` can be acted on by dataset operations. For example, we can add up the sizes of all the lines using the `map` and `reduce` operations as follows: `distFile.map(s => s.length).reduce((a, b) => a + b)`.

docs/quick-start.md

@@ -33,7 +33,7 @@ Spark's primary abstraction is a distributed collection of items called a Resili
 
 {% highlight scala %}
 scala> val textFile = sc.textFile("README.md")
-textFile: spark.RDD[String] = spark.MappedRDD@2ee9b6e3
+textFile: org.apache.spark.rdd.RDD[String] = README.md MapPartitionsRDD[1] at textFile at <console>:25
 {% endhighlight %}
 
 RDDs have _[actions](programming-guide.html#actions)_, which return values, and _[transformations](programming-guide.html#transformations)_, which return pointers to new RDDs. Let's start with a few actions:
@@ -50,7 +50,7 @@ Now let's use a transformation. We will use the [`filter`](programming-guide.htm
 
 {% highlight scala %}
 scala> val linesWithSpark = textFile.filter(line => line.contains("Spark"))
-linesWithSpark: spark.RDD[String] = spark.FilteredRDD@7dd4af09
+linesWithSpark: org.apache.spark.rdd.RDD[String] = MapPartitionsRDD[2] at filter at <console>:27
 {% endhighlight %}
 
 We can chain together transformations and actions:
@@ -123,7 +123,7 @@ One common data flow pattern is MapReduce, as popularized by Hadoop. Spark can i
 
 {% highlight scala %}
 scala> val wordCounts = textFile.flatMap(line => line.split(" ")).map(word => (word, 1)).reduceByKey((a, b) => a + b)
-wordCounts: spark.RDD[(String, Int)] = spark.ShuffledAggregatedRDD@71f027b8
+wordCounts: org.apache.spark.rdd.RDD[(String, Int)] = ShuffledRDD[8] at reduceByKey at <console>:28
 {% endhighlight %}
 
 Here, we combined the [`flatMap`](programming-guide.html#transformations), [`map`](programming-guide.html#transformations), and [`reduceByKey`](programming-guide.html#transformations) transformations to compute the per-word counts in the file as an RDD of (String, Int) pairs. To collect the word counts in our shell, we can use the [`collect`](programming-guide.html#actions) action:
@@ -181,7 +181,7 @@ Spark also supports pulling data sets into a cluster-wide in-memory cache. This
 
 {% highlight scala %}
 scala> linesWithSpark.cache()
-res7: spark.RDD[String] = spark.FilteredRDD@17e51082
+res7: linesWithSpark.type = MapPartitionsRDD[2] at filter at <console>:27
 
 scala> linesWithSpark.count()
 res8: Long = 19