[SPARK-24749][SQL] Use sameType to compare Array's element type in ArrayContains

[viirya]

What changes were proposed in this pull request?

We should use DataType.sameType to compare element type in ArrayContains, otherwise nullability affects comparison result.

How was this patch tested?

Added test.

[SparkQA]

Test build #92673 has finished for PR 21724 at commit 2c16b4e.

• This patch fails SparkR unit tests.
• This patch merges cleanly.
• This patch adds no public classes.

[HyukjinKwon]

Hm, BTW @viirya,

* checking CRAN incoming feasibility ...Error in .check_package_CRAN_incoming(pkgdir) : 
  dims [product 24] do not match the length of object [0]
Execution halted

This seems the same issue again. I reopened https://issues.apache.org/jira/browse/SPARK-24152.

[viirya]

@HyukjinKwon I've noticed that too and already sent an email to CRAN sysadmin to ask for fixing it. I think it is fixed now.

[viirya]

retest this please.

[SparkQA]

Test build #92700 has finished for PR 21724 at commit 2c16b4e.

• This patch passes all tests.
• This patch merges cleanly.
• This patch adds no public classes.

[HyukjinKwon]

Merged to master.