[MCOMPILER-345] Incorrect incremental test compilation

**[Chenguang Zhu](https://issues.apache.org/jira/secure/ViewProfile.jspa?name=cgzhu)** opened **[MCOMPILER-345](https://issues.apache.org/jira/browse/MCOMPILER-345?redirect=false)** and commented

Summary: Consder the following simple project. There are three
classes, A, C (which extends A), and T (which is a test class). Class
A has method m(int), class C has method m(long), and test invokes m
with int value. If we run 'mvn test' the test passes. If we then
remove "extends A" from C and run 'mvn test' again, the run fails with
'NoSuchMethodError'. We noticed in the output that the test class was
not recompiled (which should likely have been done).

Steps to Reproduce: Run the bash script ./s provided in this
directory. The script (1) runs mvn test, (2) removes 'extends A' from
class C, and (3) runs mvn test again.

Expected Results: p.CTest fails in the second execution. Failed tests:
test(p.CTest): expected:<0> but was:<1>.

Actual Results: p.CTest has an error in the second execution.
java.lang.NoSuchMethodError: p.C.m(I)I.

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**Affects:** 3.7.0

**Attachments:**
- [maven_bug_incremental_compile.zip](https://issues.apache.org/jira/secure/attachment/12907623/maven_bug_incremental_compile.zip) (_3.90 kB_)

Start by unpacking maven_bug_incremental_compile.zip and running the provided ./s script, which executes mvn test twice after removing "extends A" from C. Trace how the Maven Compiler Plugin decides whether p.CTest needs recompilation; done means the second run recompiles the test and reports the expected assertion failure instead of NoSuchMethodError.

Written by the indexing model from the issue text.