### What changes were proposed in this pull request?
The purpose of this pr is to resolve [SPARK-32526](https://issues.apache.org/jira/browse/SPARK-32526), all remaining failed cases are fixed.
The main change of this pr as follow:
- Change of `ExecutorAllocationManager.scala` for core module compilation in Scala 2.13, it's a blocking problem
- Change `Seq[_]` to `scala.collection.Seq[_]` refer to failed cases
- Added different expected plan of `Test 4: Star with several branches` of StarJoinCostBasedReorderSuite for Scala 2.13 because the candidates plans:
```
Join Inner, (d1_pk#5 = f1_fk1#0)
:- Join Inner, (f1_fk2#1 = d2_pk#8)
: :- Join Inner, (f1_fk3#2 = d3_pk#11)
```
and
```
Join Inner, (f1_fk2#1 = d2_pk#8)
:- Join Inner, (d1_pk#5 = f1_fk1#0)
: :- Join Inner, (f1_fk3#2 = d3_pk#11)
```
have same cost `Cost(200,9200)`, but `HashMap` is rewritten in scala 2.13 and The order of iterations leads to different results.
This pr fix test cases as follow:
- LiteralExpressionSuite (1 FAILED -> PASS)
- StarJoinCostBasedReorderSuite ( 1 FAILED-> PASS)
- ObjectExpressionsSuite( 2 FAILED-> PASS)
- ScalaReflectionSuite （1 FAILED-> PASS）
- RowEncoderSuite (10 FAILED-> PASS)
- ExpressionEncoderSuite (ABORTED-> PASS)
### Why are the changes needed?
We need to support a Scala 2.13 build.
### Does this PR introduce _any_ user-facing change?
No
### How was this patch tested?
<!--
- Scala 2.12: Pass the Jenkins or GitHub Action
- Scala 2.13: Do the following:
```
dev/change-scala-version.sh 2.13
mvn clean install -DskipTests -pl sql/catalyst -Pscala-2.13 -am
mvn test -pl sql/catalyst -Pscala-2.13
```
**Before**
```
Tests: succeeded 4035, failed 17, canceled 0, ignored 6, pending 0
*** 1 SUITE ABORTED ***
*** 15 TESTS FAILED ***
```
**After**
```
Tests: succeeded 4338, failed 0, canceled 0, ignored 6, pending 0
All tests passed.
```
Closes#29434 from LuciferYang/sql-catalyst-tests.
Authored-by: yangjie01 <yangjie01@baidu.com>
Signed-off-by: Sean Owen <srowen@gmail.com>
25c7d0fe6a